user: Question: For the tournament played Nov 13, 1988, ending with a margin of victory of 5 strokes, who was the runner-up?
Columns: ['Date', 'Tournament', 'Winning score', 'Margin of victory', 'Runner(s)-up']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['Jun 14, 1981', 'Peter Jackson Champions', '–12 (67-68-69=204)', 'Playoff', 'Gene Littler']
SQL:

assistant: SELECT "Runner(s)-up" FROM "Table" WHERE "Margin of victory" = '5 strokes' AND "Date" = 'Nov 13, 1988';