What is the sum of laps for Derek Warwick?
CREATE TABLE table_name_20 (laps INTEGER, driver VARCHAR)
SELECT SUM(laps) FROM table_name_20 WHERE driver = "derek warwick"
### Context: CREATE TABLE table_name_20 (laps INTEGER, driver VARCHAR) ### Question: What is the sum of laps for Derek Warwick? ### Answer: SELECT SUM(laps) FROM table_name_20 WHERE driver = "derek warwick"