CREATE TABLE "round_20" (
  "home_team" text,
  "home_team_score" text,
  "away_team" text,
  "away_team_score" text,
  "venue" text,
  "crowd" real,
  "date" text
);

Question: What was the smallest crowd of vfl park?
SQL: SELECT MIN("crowd") FROM "round_20" WHERE "venue"='vfl park';

Question: What was the away team score at kardinia park?
SQL: SELECT "away_team_score" FROM "round_20" WHERE "venue"='kardinia park';

Question: Who was the away team at the home game of north melbourne?
SQL: SELECT "away_team" FROM "round_20" WHERE "home_team"='north melbourne';

Question: What was the average crowd size at a home game that had a score of 14.15 (99)?
SQL: SELECT AVG("crowd") FROM "round_20" WHERE "home_team_score"='14.15 (99)';