what is the name of the constructor that has the circuit zeltweg airfield?
CREATE TABLE table_1140105_6 (constructor VARCHAR, circuit VARCHAR)
SELECT constructor FROM table_1140105_6 WHERE circuit = "Zeltweg Airfield"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_1140105_6 (constructor VARCHAR, circuit VARCHAR) Question: what is the name of the constructor that has the circuit zeltweg airfield? [/INST] SELECT constructor FROM table_1140105_6 WHERE circuit = "Zeltweg Airfield" </s>