user: Question: What is the womens singles of Marcus Ellis Gabrielle White?
Columns: ['Year', 'Mens singles', 'Womens singles', 'Mens doubles', 'Womens doubles', 'Mixed doubles']
Types: ['real', 'text', 'text', 'text', 'text', 'text']
Sample row: [2012.0, 'Anand Pawar', 'Sayaka Takahashi', 'Takeshi Kamura Keigo Sonoda', 'Naoko Fukuman Kurumi Yonao', 'Marcus Ellis Gabrielle White']
SQL:

assistant: SELECT "Womens singles" FROM "Table" WHERE "Mixed doubles" = 'Marcus Ellis Gabrielle White';