CREATE TABLE "teams" (
  "team_name_sponsored_name" text,
  "home_ground_a" text,
  "first_season" text,
  "last_title" text,
  "titles" real
);

Question: When was the last title of the team with a home ground of Sydney cricket ground?
SQL: SELECT "last_title" FROM "teams" WHERE "home_ground_a"='sydney cricket ground';