Who was the home team of the match on 21.10.07, which had bsc young boys (asl) as the geust?
CREATE TABLE "round_of_32" (
  "date" text,
  "time" text,
  "home" text,
  "geust" text,
  "result" text
);
SELECT "home" FROM "round_of_32" WHERE "date"='21.10.07' AND "geust"='bsc young boys (asl)';