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: Who was the home team at MCG?
SQL: SELECT "home_team" FROM "round_2" WHERE "venue"='mcg';

Question: Who was Carlton's away team opponents?
SQL: SELECT "away_team" FROM "round_2" WHERE "home_team"='carlton';

Question: What was home team South Melbourne's opponents score?
SQL: SELECT "away_team_score" FROM "round_2" WHERE "home_team"='south melbourne';