What is the last episode which has segment d as blown glass?
CREATE TABLE "season_4_2004" (
  "series_ep" text,
  "episode" real,
  "netflix" text,
  "segment_a" text,
  "segment_b" text,
  "segment_c" text,
  "segment_d" text
);
SELECT MAX("episode") FROM "season_4_2004" WHERE "segment_d"='Blown Glass';