user: Question: What is the to par when the winning score was 67-68-70-66=271?
Columns: ['Date', 'Tournament', 'Winning score', 'To par', 'Margin of victory', 'Runner(s)-up']
Types: ['text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['2 Nov 2002', 'Southern Farm Bureau Classic *', '66-67-68=201', '−15', '1 stroke', 'Deane Pappas']
SQL:

assistant: SELECT "To par" FROM "Table" WHERE "Winning score" = '67-68-70-66=271';