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:
Most litters contain two to ____ kittens.

Ex Output:
four


Ex Input:
Most spiders have eight eyes and ____ legs.

Ex Output:
eight


Ex Input:
Most marginal plants can live in ____ to six inches of water.

Ex Output:

zero