user: Question: What is the date of the 21:12 Set 2?
Columns: ['Date', 'Score', 'Set 1', 'Set 2', 'Total']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['3 July', '0–2', '11:21', '11:21', '22:42']
SQL:

assistant: SELECT "Date" FROM "Table" WHERE "Set 2" = '21:12';