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:
Photons have momentum but ____ mass or electrical charge.

Ex Output:
no


Ex Input:
Substance abusers have ____ hundred percent higher medical costs and benefits.

Ex Output:
three


Ex Input:
Cnidarians have ____ basic body forms.

Ex Output:

two