user: ### NOW ANSWER:
Question: How many people are shown for mens doubles when Guo Yue played womens singles?
Columns: ['Year Location', 'Mens Singles', 'Womens Singles', 'Mens Doubles', 'Womens Doubles']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['2012 Kobe', 'Jun Mizutani', 'Shen Yanfei', 'Kim Min-Seok Seo Hyun-Deok', 'Hiroko Fujii Misako Wakamiya']
SQL:

assistant: SELECT COUNT("Mens Doubles") FROM "Table" WHERE "Womens Singles" = 'Guo Yue';