What is the number of seats in congress when the electoral district is Ucayali?
CREATE TABLE "congress" (
  "electoral_district" text,
  "registered_voters" real,
  "seats_in_congress" real,
  "candidates_per_party" real,
  "participating_parties" real,
  "total_candidates" real
);
SELECT COUNT("seats_in_congress") FROM "congress" WHERE "electoral_district"='Ucayali';