CREATE TABLE "round_20" (
  "home_team" text,
  "home_team_score" text,
  "away_team" text,
  "away_team_score" text,
  "venue" text,
  "crowd" real,
  "date" text
);

Question: Which Away team score has a Home team of richmond?
SQL: SELECT "away_team_score" FROM "round_20" WHERE "home_team"='richmond';

Question: Which Venue has a Home team score of 17.16 (118)?
SQL: SELECT "venue" FROM "round_20" WHERE "home_team_score"='17.16 (118)';

Question: Which Venue has an Away team score of 13.12 (90)?
SQL: SELECT "venue" FROM "round_20" WHERE "away_team_score"='13.12 (90)';

Question: Which Home team score has an Away team of carlton?
SQL: SELECT "home_team_score" FROM "round_20" WHERE "away_team"='carlton';