user: Question: Who played Men's singles in 2007?
Columns: ['Year', "Men's singles", "Women's singles", "Men's doubles", "Women's doubles", 'Mixed doubles']
Types: ['real', 'text', 'text', 'text', 'text', 'text']
Sample row: [2004.0, 'Yuichi Ikeda', 'Kati Tolmoff', 'Theodoros Vekos George Patis', 'Kati Tolmoff Solenn Pasturel', 'Ilkka Nyqvist Leena Löytömäki']
SQL:

assistant: SELECT "Men's singles" FROM "Table" WHERE "Year" = 2007.0;