Who is the away team that played home team of Perth Wildcats?
CREATE TABLE "round_11" (
  "date" text,
  "home_team" text,
  "score" text,
  "away_team" text,
  "venue" text,
  "box_score" text,
  "report" text
);
SELECT "away_team" FROM "round_11" WHERE "home_team"='perth wildcats';