user: Question: Which competition did he Win on August 15, 2012?
Columns: ['Date', 'Venue', 'Score', 'Result', 'Competition']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['March 7, 2007', 'Shymkent , Kazakhstan', '0–1', 'Win', 'Friendly']
SQL:

assistant: SELECT "Competition" FROM "Table" WHERE "Result" = 'Win' AND "Date" = 'August 15, 2012';