CREATE TABLE "official_versions" (
  "version" text,
  "length" text,
  "album" text,
  "remixed_by" text,
  "year" real
);

Question: What is the version shown for the Length of 4:58?
SQL: SELECT "version" FROM "official_versions" WHERE "length"='4:58';

Question: What is the version shown for the Length of 5:20, and shows Remixed by —?
SQL: SELECT "version" FROM "official_versions" WHERE "length"='5:20' AND "remixed_by"='—';