user: Question: Who is the rider who did less than 20 laps on a grid number greater than 23?
Columns: ['Rider', 'Manufacturer', 'Laps', 'Time/Retired', 'Grid']
Types: ['text', 'text', 'real', 'text', 'real']
Sample row: ['Hiroshi Aoyama', 'KTM', 20.0, '43:09.316', 1.0]
SQL:

assistant: SELECT "Rider" FROM "Table" WHERE "Laps" < 20.0 AND "Grid" > 23.0;