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

Ex Input:
Ozone is a form of oxygen in which the molecule contains _ atoms instead of two.

Ex Output:
three


Ex Input:
Many people spend _ or more hours a day working for someone else.

Ex Output:
eight


Ex Input:
Ink dating The dating of inks is done in _ primary forms.

Ex Output:

three