How many fatalities occurred for an unknown tail number?
CREATE TABLE table_name_60 (fatalities VARCHAR, tail_number VARCHAR)
SELECT fatalities FROM table_name_60 WHERE tail_number = "unknown"
### Context: CREATE TABLE table_name_60 (fatalities VARCHAR, tail_number VARCHAR) ### Question: How many fatalities occurred for an unknown tail number? ### Answer: SELECT fatalities FROM table_name_60 WHERE tail_number = "unknown"