How many drivers had the fastest lap at Silverstone?
CREATE TABLE table_1137718_2 (fastest_lap VARCHAR, location VARCHAR)
SELECT COUNT(fastest_lap) FROM table_1137718_2 WHERE location = "Silverstone"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_1137718_2 (fastest_lap VARCHAR, location VARCHAR) Question: How many drivers had the fastest lap at Silverstone? [/INST] SELECT COUNT(fastest_lap) FROM table_1137718_2 WHERE location = "Silverstone" </s>