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_87 (partial_failures INTEGER, rocket VARCHAR)
### Question:
What were the average partial failures when the rocket was Ariane 5?
### Answer:
SELECT AVG(partial_failures) FROM table_name_87 WHERE rocket = "ariane 5"