Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_name_50 (constructor VARCHAR, rounds VARCHAR, driver VARCHAR)
### Question:
Which Constructor has Rounds, All and Driver, Bruno Giacomelli?
### Answer:
SELECT constructor FROM table_name_50 WHERE rounds = "all" AND driver = "bruno giacomelli"