CREATE TABLE "round_6" (
  "home_team" text,
  "home_team_score" text,
  "away_team" text,
  "away_team_score" text,
  "venue" text,
  "crowd" real,
  "date" text
);

Question: What is the away team score at princes park with a Crowd larger than 27,455?
SQL: SELECT "away_team_score" FROM "round_6" WHERE "crowd">'27,455' AND "venue"='princes park';