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_21977627_1 (driver VARCHAR, entrant VARCHAR)
### Question:
How many drivers did Bob Gerard Racing have?
### Answer:
SELECT COUNT(driver) FROM table_21977627_1 WHERE entrant = "Bob Gerard Racing"