user: Question: What is the highest number of extra points?
Columns: ['Player', 'Touchdowns', 'Extra points', 'Field goals', 'Points']
Types: ['text', 'real', 'real', 'real', 'real']
Sample row: ['Tom Hammond', 15.0, 63.0, 5.0, 163.0]
SQL:

assistant: SELECT MAX("Extra points") FROM "Table";