Who were the semi finalists when the runner-up was Alexandra Fusai Wiltrud Probst?
CREATE TABLE "july" (
  "week_of" text,
  "tier" text,
  "winner" text,
  "runner_up" text,
  "semi_finalists" text
);
SELECT "semi_finalists" FROM "july" WHERE "runner_up"='alexandra fusai wiltrud probst';