How many directors worked on the episode written by Brent Fletcher & Miranda Kwok?
CREATE TABLE table_23918997_1 (directed_by VARCHAR, written_by VARCHAR)
SELECT COUNT(directed_by) FROM table_23918997_1 WHERE written_by = "Brent Fletcher & Miranda Kwok"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_23918997_1 (directed_by VARCHAR, written_by VARCHAR) Question: How many directors worked on the episode written by Brent Fletcher & Miranda Kwok? [/INST] SELECT COUNT(directed_by) FROM table_23918997_1 WHERE written_by = "Brent Fletcher & Miranda Kwok" </s>