What is the start source of the irl country, which ended on 13 April?
CREATE TABLE "loans_out" (
  "name" text,
  "country" text,
  "loan_club" text,
  "started" text,
  "ended" text,
  "start_source" text
);
SELECT "start_source" FROM "loans_out" WHERE "country"='irl' AND "ended"='13 april';