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

Ex Input:
Muskrats are semi-aquatic and prefer locations with four to _ feet of water.

Ex Output:
six


Ex Input:
Adult muskrats average one foot in length and _ pounds in weight.

Ex Output:
three


Ex Input:
Anaemia affects around _ billion people worldwide.

Ex Output:

two