who is the driver when the constructor is maserati, the chassis is maserati 4clt-48 and the tyre is d?
CREATE TABLE "entries" (
  "driver" text,
  "entrant" text,
  "constructor" text,
  "chassis" text,
  "engine" text,
  "tyre" text
);
SELECT "driver" FROM "entries" WHERE "constructor"='maserati' AND "chassis"='maserati 4clt-48' AND "tyre"='d';