CREATE TABLE "round_4" (
  "home_team" text,
  "home_team_score" text,
  "away_team" text,
  "away_team_score" text,
  "venue" text,
  "crowd" real,
  "date" text
);

Question: What was the home team score at Kardinia Park?
SQL: SELECT "home_team_score" FROM "round_4" WHERE "venue"='kardinia park';

Question: What was the lowest crowd size for the Carlton at home?
SQL: SELECT MIN("crowd") FROM "round_4" WHERE "home_team"='carlton';