user: ### NOW ANSWER:
Question: What is the constructor on the team with 8 rounds and a chassis of 156 158 1512?
Columns: ['Constructor', 'Chassis', 'Tyre', 'Driver', 'Rounds']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['Lotus - BRM', '24', 'D', 'Peter Revson', '1, 6, 8']
SQL:

assistant: SELECT "Constructor" FROM "Table" WHERE "Rounds" = '8' AND "Chassis" = '156 158 1512';