user: Question: What is Tiffani Johnson's maximum steals?
Columns: ['Player', 'Minutes', 'Field Goals', 'Rebounds', 'Assists', 'Steals', 'Blocks', 'Points']
Types: ['text', 'real', 'real', 'real', 'real', 'real', 'real', 'real']
Sample row: ['Tina Thompson', 943.0, 180.0, 157.0, 48.0, 22.0, 23.0, 520.0]
SQL:

assistant: SELECT MAX("Steals") FROM "Table" WHERE "Player" = 'Tiffani Johnson';