What Valvetrain has a fuel system made up of petrol engines?
CREATE TABLE table_name_77 (valvetrain VARCHAR, fuel_system VARCHAR)
SELECT valvetrain FROM table_name_77 WHERE fuel_system = "petrol engines"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_name_77 (valvetrain VARCHAR, fuel_system VARCHAR) Question: What Valvetrain has a fuel system made up of petrol engines? [/INST] SELECT valvetrain FROM table_name_77 WHERE fuel_system = "petrol engines" </s>