How many directors for #15?
CREATE TABLE table_20942925_1 (directed_by VARCHAR, _number VARCHAR)
SELECT COUNT(directed_by) FROM table_20942925_1 WHERE _number = 15
### Context: CREATE TABLE table_20942925_1 (directed_by VARCHAR, _number VARCHAR) ### Question: How many directors for #15? ### Answer: SELECT COUNT(directed_by) FROM table_20942925_1 WHERE _number = 15