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

Ex Input:
Rye grasses germinate in _ days.

Ex Output:
six


Ex Input:
World population continues to rise, even as a few countries move toward _ growth.

Ex Output:
zero


Ex Input:
Leopard geckos reach sexual maturity at the age of one to _ years .

Ex Output:

three