When joj agpangan* is the name how many duration's are there?
CREATE TABLE "teen_edition_housemates" (
  "name" text,
  "home_or_representative_town_or_province" text,
  "age" real,
  "edition" text,
  "total_days_in_pbb_house" real,
  "duration" text,
  "status" text
);
SELECT COUNT("duration") FROM "teen_edition_housemates" WHERE "name"='Joj Agpangan*';