For the tournament played Nov 13, 1988, ending with a margin of victory of 5 strokes, who was the runner-up?
CREATE TABLE "senior_pga_tour_wins_24" (
  "date" text,
  "tournament" text,
  "winning_score" text,
  "margin_of_victory" text,
  "runner_s_up" text
);
SELECT "runner_s_up" FROM "senior_pga_tour_wins_24" WHERE "margin_of_victory"='5 strokes' AND "date"='nov 13, 1988';