What stage number had the general classification Rory Sutherland?
CREATE TABLE table_23157997_13 (stage VARCHAR, general_classification VARCHAR)
SELECT COUNT(stage) FROM table_23157997_13 WHERE general_classification = "Rory Sutherland"
### Context: CREATE TABLE table_23157997_13 (stage VARCHAR, general_classification VARCHAR) ### Question: What stage number had the general classification Rory Sutherland? ### Answer: SELECT COUNT(stage) FROM table_23157997_13 WHERE general_classification = "Rory Sutherland"