user: Question: 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?
Columns: ['Year of Marriage', 'Name', 'Her Age', 'His Age', '# of Children']
Types: ['real', 'text', 'real', 'real', 'real']
Sample row: [1835.0, 'Louisa Maria Tanner', 17.0, 22.0, 8.0]
SQL:

assistant: SELECT COUNT("Her Age") FROM "Table" WHERE "His Age" < 33.0 AND "Name" = 'diontha walker' AND "# of Children" < 0.0;