CREATE TABLE "round_3" (
  "home_team" text,
  "home_team_score" text,
  "away_team" text,
  "away_team_score" text,
  "venue" text,
  "crowd" real,
  "date" text
);

Question: What day is hawthorn the away side?
SQL: SELECT "date" FROM "round_3" WHERE "away_team"='hawthorn';

Question: What is the average crowd size for games with north melbourne as the away side?
SQL: SELECT AVG("crowd") FROM "round_3" WHERE "away_team"='north melbourne';