CREATE TABLE "european_tour_wins_12" (
  "date" text,
  "tournament" text,
  "winning_score" text,
  "margin_of_victory" text,
  "runner_s_up" text
);

Question: What is Date, when Runner(s)-Up is Oliver Wilson?
SQL: SELECT "date" FROM "european_tour_wins_12" WHERE "runner_s_up"='oliver wilson';

Question: What is Date, when Margin Of Victory is 4 Strokes?
SQL: SELECT "date" FROM "european_tour_wins_12" WHERE "margin_of_victory"='4 strokes';

Question: What is Runner(s)-up, when Date is 21 Jan 2007?
SQL: SELECT "runner_s_up" FROM "european_tour_wins_12" WHERE "date"='21 jan 2007';

Question: What is Tournament, when Margin Of Victory is 1 Stroke, and when Date is 18 Jan 2009?
SQL: SELECT "tournament" FROM "european_tour_wins_12" WHERE "margin_of_victory"='1 stroke' AND "date"='18 jan 2009';