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_96 (winning_constructor VARCHAR, date VARCHAR, circuit VARCHAR)
### Question:
Name the Winning constructor on 31 may and a Circuit of madonie?
### Answer:
SELECT winning_constructor FROM table_name_96 WHERE date = "31 may" AND circuit = "madonie"