user: Question: What is the highest amount of extra points someone got when they scored 28 points but had 0 field goals?
Columns: ['Player', 'Touchdowns', 'Extra points', 'Field goals', 'Points']
Types: ['text', 'real', 'real', 'real', 'real']
Sample row: ['Heston', 2.0, 0.0, 0.0, 10.0]
SQL:

assistant: SELECT MAX("Extra points") FROM "Table" WHERE "Points" = 28.0 AND "Field goals" < 0.0;