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: Which team was the home team when playing South Melbourne?
SQL: SELECT "home_team_score" FROM "round_4" WHERE "away_team"='south melbourne';

Question: What did the home team when they played Richmond?
SQL: SELECT "home_team_score" FROM "round_4" WHERE "away_team"='richmond';

Question: What was the crowd number when Hawthorn was the away team?
SQL: SELECT MAX("crowd") FROM "round_4" WHERE "away_team"='hawthorn';