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_1997759_1 (number VARCHAR, registration VARCHAR)
### Question:
how many number is located at registration f-bvff?
### Answer:
SELECT COUNT(number) FROM table_1997759_1 WHERE registration = "F-BVFF"