CREATE TABLE "round_12" (
  "home_team" text,
  "home_team_score" text,
  "away_team" text,
  "away_team_score" text,
  "venue" text,
  "crowd" real,
  "date" text
);

Question: Where did the away team Carlton play?
SQL: SELECT "venue" FROM "round_12" WHERE "away_team"='carlton';

Question: What home team played against Richmond?
SQL: SELECT "home_team" FROM "round_12" WHERE "away_team"='richmond';

Question: What is the smallest crowd size for punt road oval?
SQL: SELECT MIN("crowd") FROM "round_12" WHERE "venue"='punt road oval';