user: Question: What was the score on April 21?
Columns: ['Date', 'Opponent', 'Score', 'Loss', 'Attendance', 'Record']
Types: ['text', 'text', 'text', 'text', 'real', 'text']
Sample row: ['March 31', 'Astros', '4–0', 'Oswalt (0–1)', 44965.0, '1–0']
SQL:

assistant: SELECT "Score" FROM "Table" WHERE "Date" = 'April 21';