What is the average lane of the athlete from japan with a time of 4:37.35 and a heat less than 3?
CREATE TABLE "heats" (
  "heat" real,
  "lane" real,
  "name" text,
  "nationality" text,
  "time" text
);
SELECT AVG("lane") FROM "heats" WHERE "nationality"='japan' AND "time"='4:37.35' AND "heat"<3;