CREATE TABLE "round_1" (
  "home_team" text,
  "home_team_score" text,
  "away_team" text,
  "away_team_score" text,
  "venue" text,
  "crowd" real,
  "date" text
);

Question: How many people were in the crowd for a game than had carlton as the visiting team?
SQL: SELECT "crowd" FROM "round_1" WHERE "away_team"='carlton';

Question: What was total size of the crowd at a home game for north melbourne?
SQL: SELECT SUM("crowd") FROM "round_1" WHERE "home_team"='north melbourne';

Question: When was the game played at glenferrie oval?
SQL: SELECT "date" FROM "round_1" WHERE "venue"='glenferrie oval';