CREATE TABLE "round_1" (
  "home_team" text,
  "home_team_score" text,
  "away_team" text,
  "away_team_score" text,
  "ground" text,
  "date" text
);

Question: When was the home team Essendon? 
SQL: SELECT "date" FROM "round_1" WHERE "home_team"='Essendon';

Question: When Richmond played as the away team, what was the ground?
SQL: SELECT "ground" FROM "round_1" WHERE "away_team"='Richmond';

Question: When did Fitzroy play as the home team?
SQL: SELECT "date" FROM "round_1" WHERE "home_team"='Fitzroy';