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_224839_3 (vacator VARCHAR, successor VARCHAR)
### Question:
What is the number of vacators when the successor was William H. Wells ( F )?
### Answer:
SELECT COUNT(vacator) FROM table_224839_3 WHERE successor = "William H. Wells ( F )"