On what date was the 4th round, with home team Itabuna, played?
CREATE TABLE "second_three_matches" (
  "round" text,
  "date" text,
  "home_team" text,
  "score" text,
  "away_team" text
);
SELECT "date" FROM "second_three_matches" WHERE "round"='4th' AND "home_team"='itabuna';