user: Question: What is the Set 3 when the Set 2 is 21–25, and a Set 1 is 25–21?
Columns: ['Date', 'Time', 'Score', 'Set 1', 'Set 2', 'Set 3', 'Total', 'Report']
Types: ['text', 'text', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['22 May', '11:00', '3–0', '25–20', '25–20', '28–26', '78–66', 'P2']
SQL:

assistant: SELECT "Set 3" FROM "Table" WHERE "Set 2" = '21–25' AND "Set 1" = '25–21';