What is the Country of the Rowers with a Rank larger than 4 and Time of 5:59.56?
CREATE TABLE "semifinal_a_b_1" (
  "rank" real,
  "rowers" text,
  "country" text,
  "time" text,
  "notes" text
);
SELECT "country" FROM "semifinal_a_b_1" WHERE "rank">4 AND "time"='5:59.56';