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

Ex Input:
Some manatees have _ or four nails on the tip of each flipper.

Ex Output:
three


Ex Input:
Mothers have _ to seven babies.

Ex Output:
one


Ex Input:
Every drug has _ names, a chemical name, a brand name, and an official name.

Ex Output:

three