Who is the tuner after season 2004 with Gaurav Gill as the driver, Team MRF, and Mai governing body?
CREATE TABLE "results" (
  "season" real,
  "driver" text,
  "co_driver" text,
  "team" text,
  "tuner" text,
  "governing_body" text
);
SELECT "tuner" FROM "results" WHERE "season">2004 AND "driver"='gaurav gill' AND "team"='team mrf' AND "governing_body"='mai';