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_17012578_37 (Ends VARCHAR, pa VARCHAR)
### Question:
How many values are in the ends won cell corresponding to a PA of 39?
### Answer:
SELECT COUNT(Ends) AS won FROM table_17012578_37 WHERE pa = 39