CREATE TABLE "round_2" (
  "home_team" text,
  "home_team_score" text,
  "away_team" text,
  "away_team_score" text,
  "venue" text,
  "crowd" real,
  "date" text
);

Question: When the Home team was Carlton, what was the Away team score?
SQL: SELECT "away_team_score" FROM "round_2" WHERE "home_team"='carlton';