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_29747178_2 (written_by VARCHAR, directed_by VARCHAR)
### Question:
Who is the writer when the director is bob berlinger?
### Answer:
SELECT written_by FROM table_29747178_2 WHERE directed_by = "Bob Berlinger"