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 is the away team that had a score of 15.9 (99)?
SQL: SELECT "away_team" FROM "round_4" WHERE "away_team_score"='15.9 (99)';

Question: What is the home team that scored 10.13 (73)?
SQL: SELECT "home_team" FROM "round_4" WHERE "home_team_score"='10.13 (73)';

Question: What day did the home team score 10.13 (73)?
SQL: SELECT "date" FROM "round_4" WHERE "home_team_score"='10.13 (73)';