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_84 (events INTEGER, tournament VARCHAR, top_25 VARCHAR)
### Question:
What is the average number of events the Masters tournament, which has more than 0 top-25, has?
### Answer:
SELECT AVG(events) FROM table_name_84 WHERE tournament = "masters tournament" AND top_25 > 0