user: ### NOW ANSWER:
Question: What instrumental has tkven-i as the genitive?
Columns: ['Nominative', 'Ergative', 'Dative', 'Genitive', 'Instrumental', 'Adverbial']
Types: ['text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['chem-i', 'chem-ma', 'chem-s', 'chem-i', 'chem-is', 'chem-s']
SQL:

assistant: SELECT "Instrumental" FROM "Table" WHERE "Genitive" = 'tkven-i';