What is the name of the machine that ranked  4th and has 2 wins?
CREATE TABLE "grand_prix_career_statistics" (
  "year" real,
  "class" text,
  "team" text,
  "machine" text,
  "points" real,
  "rank" text,
  "wins" real
);
SELECT "machine" FROM "grand_prix_career_statistics" WHERE "rank"='4th' AND "wins"=2;