Who was the writer of episode 15?
CREATE TABLE table_25800134_4 (writer_s_ VARCHAR, season__number VARCHAR)
SELECT writer_s_ FROM table_25800134_4 WHERE season__number = 15
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_25800134_4 (writer_s_ VARCHAR, season__number VARCHAR) Question: Who was the writer of episode 15? [/INST] SELECT writer_s_ FROM table_25800134_4 WHERE season__number = 15 </s>