Which authority has a rocket launch called rehbar-5?
CREATE TABLE table_11869952_1 (derivatives VARCHAR, rocket_launch VARCHAR)
SELECT COUNT(derivatives) FROM table_11869952_1 WHERE rocket_launch = "Rehbar-5"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_11869952_1 (derivatives VARCHAR, rocket_launch VARCHAR) Question: Which authority has a rocket launch called rehbar-5? [/INST] SELECT COUNT(derivatives) FROM table_11869952_1 WHERE rocket_launch = "Rehbar-5" </s>