Name the total number of years for chassis of maserati 250f and points less than 0
CREATE TABLE table_name_85 (year VARCHAR, chassis VARCHAR, points VARCHAR)
SELECT COUNT(year) FROM table_name_85 WHERE chassis = "maserati 250f" AND points < 0
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_name_85 (year VARCHAR, chassis VARCHAR, points VARCHAR) Question: Name the total number of years for chassis of maserati 250f and points less than 0 [/INST] SELECT COUNT(year) FROM table_name_85 WHERE chassis = "maserati 250f" AND points < 0 </s>