user: Question: Which Points have Wins of 0, and a Final Placing of 21st?
Columns: ['Season', 'Series', 'Team Name', 'Races', 'Wins', 'Poles', 'F/Laps', 'Podiums', 'Points', 'Final Placing']
Types: ['real', 'text', 'text', 'text', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: [1998.0, 'French Formula Three', 'Signature Compétition', '12', '0', '0', '0', '0', '31', '12th']
SQL:

assistant: SELECT "Points" FROM "Table" WHERE "Wins" = '0' AND "Final Placing" = '21st';