What locomotive built after 1895 has the highest SLM number?
CREATE TABLE "united_kingdom" (
  "built" real,
  "number" real,
  "type" text,
  "slm_number" real,
  "wheel_arrangement" text,
  "location" text,
  "notes" text
);
SELECT MAX("slm_number") FROM "united_kingdom" WHERE "built">1895;