user: Question: Which year did Aya Ohori play in the Women's Singles?
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: [1997.0, 'Chen Hong', 'Yang Wei', 'Chan Chong Ming Jeremy Gan', 'Yang Wei Gao Ling', 'Cheng Rui Gao Ling']
SQL:

assistant: SELECT "Year" FROM "Table" WHERE "Women's singles" = 'Aya Ohori';