state the opponent on halliwell jones stadium in super league xiv
CREATE TABLE "fixtures_and_results" (
  "competition" text,
  "round" text,
  "opponent" text,
  "result" text,
  "score" text,
  "home_away" text,
  "venue" text,
  "attendance" real,
  "date" text
);
SELECT "opponent" FROM "fixtures_and_results" WHERE "venue"='Halliwell Jones Stadium' AND "competition"='Super League XIV';