What is the Name of the Player with a Rank of 23 or less, Heat of 4 and Result of 55.91?
CREATE TABLE "round_1" (
  "rank" real,
  "heat" real,
  "name" text,
  "nationality" text,
  "result" text
);
SELECT "name" FROM "round_1" WHERE "heat"=4 AND "rank"<23 AND "result"='55.91';