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_21 (wins INTEGER, year VARCHAR, class VARCHAR)
### Question:
How many wins have a year after 1976, and 350cc as the class?
### Answer:
SELECT SUM(wins) FROM table_name_21 WHERE year > 1976 AND class = "350cc"