Who is the constructor of John Surtees's Oulton Park circuit car?
CREATE TABLE table_name_67 (constructor VARCHAR, circuit VARCHAR, winning_driver VARCHAR)
SELECT constructor FROM table_name_67 WHERE circuit = "oulton park" AND winning_driver = "john surtees"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_name_67 (constructor VARCHAR, circuit VARCHAR, winning_driver VARCHAR) Question: Who is the constructor of John Surtees's Oulton Park circuit car? [/INST] SELECT constructor FROM table_name_67 WHERE circuit = "oulton park" AND winning_driver = "john surtees" </s>