Question: Which Free polite has a Genitive 3 of *ni-da?
SQL: SELECT "Free polite" FROM "2-15568886-12" WHERE "Genitive 3" = '*ni-da';

Question: Which Free polite has a Genitive 1 of *=ku?
SQL: SELECT "Free polite" FROM "2-15568886-12" WHERE "Genitive 1" = '*=ku';

Question: Which Free has a Free polite of *[i-]k-ita?
SQL: SELECT "Free" FROM "2-15568886-12" WHERE "Free polite" = '*[i-]k-ita';

Question: Which Free polite has a Genitive 3 of *n(i)-ami?
SQL: SELECT "Free polite" FROM "2-15568886-12" WHERE "Genitive 3" = '*n(i)-ami';

Question: Which Genitive 1 has a Free polite of –, and a Genitive 2 of –, and a Genitive 3 of *n(i)-ia?
SQL: SELECT "Genitive 1" FROM "2-15568886-12" WHERE "Free polite" = '–' AND "Genitive 2" = '–' AND "Genitive 3" = '*n(i)-ia';

Question: Which Genitive 1 has a Genitive 3 of *n(i)-ia?
SQL: SELECT "Genitive 1" FROM "2-15568886-12" WHERE "Genitive 3" = '*n(i)-ia';