Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_name_6 (constructor VARCHAR, winning_driver VARCHAR, circuit VARCHAR)

### Question ###
Which Constructor has the Winning Driver, Jim Clark and the Circuit, Syracuse?

### Accurate SQL ###

SELECT constructor FROM table_name_6 WHERE winning_driver = "jim clark" AND circuit = "syracuse"