Who was the opponent before week 5 that played on September 23, 2001?
CREATE TABLE table_name_99 (opponent VARCHAR, week VARCHAR, date VARCHAR)
SELECT opponent FROM table_name_99 WHERE week < 5 AND date = "september 23, 2001"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_name_99 (opponent VARCHAR, week VARCHAR, date VARCHAR) Question: Who was the opponent before week 5 that played on September 23, 2001? [/INST] SELECT opponent FROM table_name_99 WHERE week < 5 AND date = "september 23, 2001" </s>