CREATE TABLE table_name_84 (her_age NUMBER, _number_of_children VARCHAR2, his_age VARCHAR2, name VARCHAR2)

What is the total number of her age figures where his age is less than 33, the bride was diontha walker, and the number of children was less than 0?
SELECT SUM(her_age) FROM table_name_84 WHERE his_age < 33 AND name = "diontha walker" AND _number_of_children < 0
SELECT SUM("her_age") FROM "table_name_84" WHERE "_number_of_children" < 0 AND "diontha walker" = "name" AND "his_age" < 33