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: Tell me the away team for venue of western oval
SQL: SELECT "away_team" FROM "round_4" WHERE "venue"='western oval';

Question: Tell me the away team score for 27 april 1974 and veue of mcg
SQL: SELECT "away_team_score" FROM "round_4" WHERE "date"='27 april 1974' AND "venue"='mcg';

Question: I want to see the away team the has a home team of richmond
SQL: SELECT "away_team" FROM "round_4" WHERE "home_team"='richmond';