CREATE TABLE "round_11" (
  "home_team" text,
  "home_team_score" text,
  "away_team" text,
  "away_team_score" text,
  "venue" text,
  "crowd" real,
  "date" text
);

Question: What is Essendon's home team that has an away crowd size larger than 19,491?
SQL: SELECT "away_team" FROM "round_11" WHERE "crowd">'19,491' AND "home_team"='essendon';

Question: When did an away team score 15.7 (97)?
SQL: SELECT "date" FROM "round_11" WHERE "away_team_score"='15.7 (97)';

Question: When was there a game at Kardinia Park?
SQL: SELECT "date" FROM "round_11" WHERE "venue"='kardinia park';