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_38 (event VARCHAR, location VARCHAR, opponent VARCHAR)
### Question:
Which event was in Tokyo, Japan and had an opponent of rumina sato?
### Answer:
SELECT event FROM table_name_38 WHERE location = "tokyo, japan" AND opponent = "rumina sato"