CREATE TABLE "round_13" (
  "home_team" text,
  "home_team_score" text,
  "away_team" text,
  "away_team_score" text,
  "venue" text,
  "crowd" real,
  "date" text
);

Question: Which venue did North Melbourne play away with a crowd greater than 30,000?
SQL: SELECT "venue" FROM "round_13" WHERE "crowd">'30,000' AND "away_team"='north melbourne';

Question: What did the away team score when the home team scored 23.13 (151)?
SQL: SELECT "away_team_score" FROM "round_13" WHERE "home_team_score"='23.13 (151)';