CREATE TABLE "round_18" (
  "home_team" text,
  "home_team_score" text,
  "away_team" text,
  "away_team_score" text,
  "venue" text,
  "crowd" real,
  "date" text
);

Question: What venue does st kilda play at as the away team?
SQL: SELECT "venue" FROM "round_18" WHERE "away_team"='st kilda';

Question: What is melbourne's home team score?
SQL: SELECT "home_team_score" FROM "round_18" WHERE "home_team"='melbourne';

Question: How many games is collingwood the home side?
SQL: SELECT COUNT("crowd") FROM "round_18" WHERE "home_team"='collingwood';