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_28211213_2 (institution VARCHAR, team_nickname VARCHAR)
### Question:
When gray wolves is the team nickname how many institutions are there?
### Answer:
SELECT COUNT(institution) FROM table_28211213_2 WHERE team_nickname = "Gray Wolves"