What is the Cover Date of the Story Title Spacehikers (Part 2)?
CREATE TABLE "third_format" (
  "cover_date" text,
  "story_title" text,
  "writer_s" text,
  "letterer_s" text,
  "colourist_s" text
);
SELECT "cover_date" FROM "third_format" WHERE "story_title"='spacehikers (part 2)';