What is the entered number for the person with a time of 29:28?
CREATE TABLE "elimination_chamber_entrances_and_elimin" (
  "eliminated" text,
  "wrestler" text,
  "entered" real,
  "eliminated_by" text,
  "time" text
);
SELECT "entered" FROM "elimination_chamber_entrances_and_elimin" WHERE "time"='29:28';