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_53 (date VARCHAR, opponent VARCHAR, method VARCHAR, round VARCHAR)
### Question:
When did the opponent knockout Barry Prior in more than 2 rounds?
### Answer:
SELECT date FROM table_name_53 WHERE method = "knockout" AND round > 2 AND opponent = "barry prior"