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_13328239_4 (round VARCHAR, score VARCHAR)
### Question:
How many rounds ended with a score of 16-52?
### Answer:
SELECT COUNT(round) FROM table_13328239_4 WHERE score = "16-52"