Who constructed rolf stommelen's car?
CREATE TABLE table_name_83 (constructor VARCHAR, driver VARCHAR)
SELECT constructor FROM table_name_83 WHERE driver = "rolf stommelen"
### Context: CREATE TABLE table_name_83 (constructor VARCHAR, driver VARCHAR) ### Question: Who constructed rolf stommelen's car? ### Answer: SELECT constructor FROM table_name_83 WHERE driver = "rolf stommelen"