user: Question: What is the 3-person dive that has none as the 2-person dive?
Columns: ['1-person dive', '2-person dive', '3-person dive', 'Surface', 'Cage dive', 'Seal/turtle decoy', 'Catch release', 'Attached camera', 'Remote camera']
Types: ['text', 'text', 'text', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['none', 'none', 'none', 'raft', 'cage', 'seal/turtle decoy', 'fishing gear', 'attached camera', 'remote drone camera']
SQL:

assistant: SELECT "3-person dive" FROM "Table" WHERE "2-person dive" = 'none';