CREATE TABLE "round_19" (
  "home_team" text,
  "home_team_score" text,
  "away_team" text,
  "away_team_score" text,
  "venue" text,
  "crowd" real,
  "date" text
);

Question: Which team plays their home matches at the mcg Venue?
SQL: SELECT "home_team" FROM "round_19" WHERE "venue"='mcg';