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:
Marsupials have ____ vaginas and a double uterus.

Ex Output:
two


Ex Input:
Some prisons house up to ____ times their capacity.

Ex Output:
seven


Ex Input:
All cattle have a ____ chambered stomach, consisting of a rumen, reticulum, omasum and abomasum.

Ex Output:

four