What is the entrant of a chassis maserati 250f, also has 6 points and older than year 1957?
CREATE TABLE table_name_42 (entrant VARCHAR, year VARCHAR, chassis VARCHAR, points VARCHAR)
SELECT entrant FROM table_name_42 WHERE chassis = "maserati 250f" AND points = "6" AND year < 1957
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_name_42 (entrant VARCHAR, year VARCHAR, chassis VARCHAR, points VARCHAR) Question: What is the entrant of a chassis maserati 250f, also has 6 points and older than year 1957? [/INST] SELECT entrant FROM table_name_42 WHERE chassis = "maserati 250f" AND points = "6" AND year < 1957 </s>