user: Question: What Set 2 has a set one at 19:21?
Columns: ['Date', 'Score', 'Set 1', 'Set 2', 'Total']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['3 July', '0–2', '15:21', '15:21', '30:42']
SQL:

assistant: SELECT "Set 2" FROM "Table" WHERE "Set 1" = '19:21';