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:
Groundhogs usually have ____ separate dens.

Ex Output:
two


Ex Input:
All birds have ____ legs with four toes each.

Ex Output:
two


Ex Input:
Flexor carpi ulnaris muscles are fourth superior-most of ____ flexor epicondyle muscles.

Ex Output:

five