user: Question: What is To par, when Margin of Victory is "2 strokes", and when Tournament is "Women's British Open"?
Columns: ['Date', 'Tournament', 'Winning score', 'To par', 'Margin of victory', 'Runner(s)-up', "Winner's share ( $ )"]
Types: ['text', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['Sep 9, 2007', 'LPGA NW Arkansas Championship * (as an amateur)', '65 (1 round)', '–7', '1 stroke', 'Katherine Hull Teresa Lu Kristy McPherson', 'n/a']
SQL:

assistant: SELECT "To par" FROM "Table" WHERE "Margin of victory" = '2 strokes' AND "Tournament" = 'Women''s British Open';