What is Type, when Works Number is "unknown"?
CREATE TABLE table_name_50 (type VARCHAR, works_number VARCHAR)
SELECT type FROM table_name_50 WHERE works_number = "unknown"
### Context: CREATE TABLE table_name_50 (type VARCHAR, works_number VARCHAR) ### Question: What is Type, when Works Number is "unknown"? ### Answer: SELECT type FROM table_name_50 WHERE works_number = "unknown"