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_72 (capacity INTEGER, home_team_s_ VARCHAR)
### Question:
What was the average capacity for vélez sársfield?
### Answer:
SELECT AVG(capacity) FROM table_name_72 WHERE home_team_s_ = "vélez sársfield"