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_54 (opponent VARCHAR, event VARCHAR)
### Question:
Who was the opponent at GCM – D.O.G. 4?
### Answer:
SELECT opponent FROM table_name_54 WHERE event = "gcm – d.o.g. 4"