What is the average year that the Belanger Motors had an Offenhauser l4 engine?
CREATE TABLE table_name_8 (year INTEGER, engine VARCHAR, entrant VARCHAR)
SELECT AVG(year) FROM table_name_8 WHERE engine = "offenhauser l4" AND entrant = "belanger motors"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_name_8 (year INTEGER, engine VARCHAR, entrant VARCHAR) Question: What is the average year that the Belanger Motors had an Offenhauser l4 engine? [/INST] SELECT AVG(year) FROM table_name_8 WHERE engine = "offenhauser l4" AND entrant = "belanger motors" </s>