Given a sentence, fill out the missing word with a 'no' or a number (between zero and ten). You should write the numbers with english alphabet, like: four instead of 4.

Ex Input:
Prairie dogs bear four or ____ young per litter.

Ex Output:
five

Ex Input:
Malaria kills up to ____ million people each year.

Ex Output:
two

Ex Input:
Perennial grass takes ____ to five years before it is mature enough to produce adequate seed.

Ex Output:
three