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