Name the sum of inversions for opened of april 20, 2002
CREATE TABLE table_name_89 (inversions INTEGER, opened VARCHAR)
SELECT SUM(inversions) FROM table_name_89 WHERE opened = "april 20, 2002"
### Context: CREATE TABLE table_name_89 (inversions INTEGER, opened VARCHAR) ### Question: Name the sum of inversions for opened of april 20, 2002 ### Answer: SELECT SUM(inversions) FROM table_name_89 WHERE opened = "april 20, 2002"