CREATE TABLE table_27714573_1 (written_by VARCHAR2, production_code_s_ VARCHAR2)

who are the writers of the episode whose production code(s) is 225560?
SELECT written_by FROM table_27714573_1 WHERE production_code_s_ = 225560
SELECT "written_by" FROM "table_27714573_1" WHERE "production_code_s_" = 225560