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_23799653_1 (written_by VARCHAR, directed_by VARCHAR)
### Question:
Who wrote the episode whose director is Karen Gaviola?
### Answer:
SELECT written_by FROM table_23799653_1 WHERE directed_by = "Karen Gaviola"