Luis Salom had the fastest lap on which circuits? 
CREATE TABLE table_18303274_1 (circuit VARCHAR, fastest_lap VARCHAR)
SELECT circuit FROM table_18303274_1 WHERE fastest_lap = "Luis Salom"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_18303274_1 (circuit VARCHAR, fastest_lap VARCHAR) Question: Luis Salom had the fastest lap on which circuits?  [/INST] SELECT circuit FROM table_18303274_1 WHERE fastest_lap = "Luis Salom" </s>