user: Question: Name the women's doubles for year less than 1972
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: [1971.0, 'Kenneth Wain', 'Barbara Martin', 'Alfred Cefai Kenneth Wain', 'Carrol McKenzie Hazel Tough', 'John Farmer Barbara Martin']
SQL:

assistant: SELECT "Women's doubles" FROM "Table" WHERE "Year" < 1972.0;