How many weeks has the opponent been san francisco 49ers?
CREATE TABLE table_name_65 (week VARCHAR, opponent VARCHAR)
SELECT COUNT(week) FROM table_name_65 WHERE opponent = "san francisco 49ers"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_name_65 (week VARCHAR, opponent VARCHAR) Question: How many weeks has the opponent been san francisco 49ers? [/INST] SELECT COUNT(week) FROM table_name_65 WHERE opponent = "san francisco 49ers" </s>