How many lanes featured a swimmer ranked above 4, in a heat later than 1, from australia, named ashley callus?
CREATE TABLE "semifinals" (
  "rank" real,
  "heat" real,
  "lane" real,
  "name" text,
  "nationality" text,
  "time" real
);
SELECT COUNT("lane") FROM "semifinals" WHERE "rank">4 AND "heat">1 AND "nationality"='australia' AND "name"='ashley callus';