CREATE TABLE "biggest_wins" (
  "margin" real,
  "score" text,
  "winning_team" text,
  "losing_team" text,
  "venue" text,
  "date" text
);

Question: What is the Margin, when Date is 19 July 2008 (Round 19)?
SQL: SELECT "margin" FROM "biggest_wins" WHERE "date"='19 july 2008 (round 19)';

Question: What is the Winning Team, when Losing Team is South Sydney Rabbitohs?
SQL: SELECT "winning_team" FROM "biggest_wins" WHERE "losing_team"='south sydney rabbitohs';

Question: What is the Venue, when the Score is 56-4?
SQL: SELECT "venue" FROM "biggest_wins" WHERE "score"='56-4';