What is the type of the locomotive which was delivered in 1857-59?
CREATE TABLE "locomotives_and_wagons" (
  "class" text,
  "quantity" real,
  "type" text,
  "delivered" text,
  "k_b_sts_b_class" text,
  "retired" text
);
SELECT "type" FROM "locomotives_and_wagons" WHERE "delivered"='1857-59';