What was part 4 when part 3 was *hleupun?
CREATE TABLE "northwest_germanic" (
  "class" text,
  "part_1" text,
  "part_2" text,
  "part_3" text,
  "part_4" text
);
SELECT "part_4" FROM "northwest_germanic" WHERE "part_3"='*hleupun';