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

Ex Input:
Some seeds can remain dormant for up to _ years.

Ex Output:
two


Ex Input:
Human sperm comes in _ varieties, mixed.

Ex Output:
three


Ex Input:
Chronic sinusitis is a sinus infection that occurs frequently or lasts _ months or longer.

Ex Output:

three