user: Question: What is the highest flap for class 500 cc?
Columns: ['Class', 'Seas', '1st GP', '1st Pod', '1st Win', 'Race', 'Podiums', 'Pole', 'FLap', 'WChmp']
Types: ['text', 'text', 'text', 'text', 'text', 'real', 'real', 'real', 'real', 'real']
Sample row: ['125 cc', '1996–1997', '1996 Malaysia', '1996 Austria', '1996 Czech Rep.', 30.0, 15.0, 5.0, 9.0, 1.0]
SQL:

assistant: SELECT MAX("FLap") FROM "Table" WHERE "Class" = '500 cc';