user: Question: Who are the mens singles and womens singles with Sun Yu?
Columns: ['Year', 'Mens singles', 'Womens singles', 'Mens doubles', 'Womens doubles', 'Mixed doubles']
Types: ['real', 'text', 'text', 'text', 'text', 'text']
Sample row: [2012.0, 'Chen Yuekun', 'Sun Yu', 'Lee Sheng-mu Tsai Chia-hsin', 'Eom Hye-won Jang Ye-na', 'Tontowi Ahmad Lilyana Natsir']
SQL:

assistant: SELECT "Mens singles" FROM "Table" WHERE "Womens singles" = 'Sun Yu';