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"
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: Name the sum of inversions for opened of april 20, 2002 ### Input: CREATE TABLE table_name_89 (
    inversions INTEGER,
    opened VARCHAR
) ### Response: SELECT SUM(inversions) FROM table_name_89 WHERE opened = "april 20, 2002"