CREATE TABLE "round_5" (
  "home_team" text,
  "home_team_score" text,
  "away_team" text,
  "away_team_score" text,
  "venue" text,
  "crowd" real,
  "date" text
);

Question: What was the size of the crowd at the game played at Junction Oval?
SQL: SELECT AVG("crowd") FROM "round_5" WHERE "venue"='junction oval';

Question: When was the game when North Melbourne was the home team?
SQL: SELECT "date" FROM "round_5" WHERE "home_team"='north melbourne';