CREATE TABLE "round_5" (
  "home_team" text,
  "home_team_score" text,
  "away_team" text,
  "away_team_score" text,
  "venue" text,
  "crowd" real,
  "date" text
);

Question: What is the lowest crowd when North Melbourne played at home?
SQL: SELECT MIN("crowd") FROM "round_5" WHERE "home_team"='north melbourne';

Question: Which home team has a crowd larger than 25,000?
SQL: SELECT "home_team" FROM "round_5" WHERE "crowd">'25,000';

Question: What is the average crowd size where the away team scored 22.12 (144)?
SQL: SELECT AVG("crowd") FROM "round_5" WHERE "away_team_score"='22.12 (144)';