user: Question: Who won Womens Singles in the year that Ma Lin won Mens Singles?
Columns: ['Year Location', 'Mens Singles', 'Womens Singles', 'Mens Doubles', 'Womens Doubles']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['2012 Bremen', 'Dimitrij Ovtcharov', 'Shen Yanfei', 'Jiang Tianyi Wong Chun Ting', 'Petrissa Solja Sabine Winter']
SQL:

assistant: SELECT "Womens Singles" FROM "Table" WHERE "Mens Singles" = 'Ma Lin';