user: Question: What is the set 2 the has 1 set of 21-25, and 4 sets of 25-20?
Columns: ['Date', 'Score', 'Set 1', 'Set 2', 'Set 3', 'Set 4', 'Set 5', 'Total']
Types: ['text', 'text', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['May 11', '3-0', '25-18', '25-19', '25-18', 'NA', 'NA', '75 - 55']
SQL:

assistant: SELECT "Set 2" FROM "Table" WHERE "Set 1" = '21-25' AND "Set 4" = '25-20';