Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_2866509_1 (written_by VARCHAR, production_code VARCHAR)
### Question:
who are the writers of the episode whose production code is 176206? 
### Answer:
SELECT written_by FROM table_2866509_1 WHERE production_code = 176206