user: Question: What instrumental has chven-s as the adverbial?
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 "Adverbial" = 'chven-s';