user: Question: What was the number of the player that was 6-6?
Columns: ['Number', 'Name', 'Position', 'Height', 'Experience', 'College']
Types: ['real', 'text', 'text', 'text', 'text', 'text']
Sample row: [15.0, 'John Barnhill', 'Guard', '6-1', '9 yrs.', 'Tennessee State']
SQL:

assistant: SELECT "Number" FROM "Table" WHERE "Height" = '6-6';