In this task, find the most appropriate number to replace the blank (indicated with _ ) and express it in words.

Input: Consider Input: Black women giving birth have a four to _ higher rate of mortality than white women do.

Output: one

Input: Consider Input: Plazas have _ accumulations of rubbish but are covered with even layers of mud bricks and plaster.

Output: no

Input: Consider Input: Children usually outgrow food allergies by the time they are _ years of age.
Output: five