user: Question: How many womens singles entries are there when womens doubles is Li Xiaodan Wen Jia?
Columns: ['Year Location', 'Mens Singles', 'Womens Singles', 'Mens Doubles', 'Womens Doubles']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['2012 Doha', 'Xu Xin', 'Chen Meng', 'Ma Lin Xu Xin', 'Li Xiaodan Wen Jia']
SQL:

assistant: SELECT COUNT("Womens Singles") FROM "Table" WHERE "Womens Doubles" = 'Li Xiaodan Wen Jia';