user: Question: Who is runner-up where the winning score is –6 (65-70-70-69=274) and the margin of victory is 3 strokes?
Columns: ['Date', 'Tournament', 'Winning score', 'Margin of victory', 'Runner(s)-up']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['10 Oct 1993', 'Alfred Dunhill Open', '–14 (68-68-66-68=270)', '2 strokes', 'Nick Faldo , Vijay Singh']
SQL:

assistant: SELECT "Runner(s)-up" FROM "Table" WHERE "Margin of victory" = '3 strokes' AND "Winning score" = '–6 (65-70-70-69=274)';