What is found in the Built column of the locomotive with 0-4-0 wheels that is still in service?
CREATE TABLE "diesel_locomotives" (
  "name" text,
  "built" text,
  "wheels" text,
  "fuel_trans" text,
  "status" text,
  "colour" text
);
SELECT "built" FROM "diesel_locomotives" WHERE "wheels"='0-4-0' AND "status"='in service';