Which circuit did winfield team nissan win for the tooheys 1000?
CREATE TABLE table_name_68 (circuit VARCHAR, team VARCHAR, series VARCHAR)
SELECT circuit FROM table_name_68 WHERE team = "winfield team nissan" AND series = "tooheys 1000"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_name_68 (circuit VARCHAR, team VARCHAR, series VARCHAR) Question: Which circuit did winfield team nissan win for the tooheys 1000? [/INST] SELECT circuit FROM table_name_68 WHERE team = "winfield team nissan" AND series = "tooheys 1000" </s>