At which site was Northwestern an opponent?
CREATE TABLE table_name_67 (site VARCHAR, opponent_number VARCHAR)
SELECT site FROM table_name_67 WHERE opponent_number = "northwestern"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_name_67 (site VARCHAR, opponent_number VARCHAR) Question: At which site was Northwestern an opponent? [/INST] SELECT site FROM table_name_67 WHERE opponent_number = "northwestern" </s>