What is the total number of heats with a finisher named Gregor Tait in lanes over 6?
CREATE TABLE "heats" (
  "rank" real,
  "heat" real,
  "lane" real,
  "name" text,
  "nationality" text,
  "time" text
);
SELECT COUNT("heat") FROM "heats" WHERE "name"='gregor tait' AND "lane">6;