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 ____ mass and no electrical charge.

Ex Output:
no


Ex Input:
Hydroplanes have ____ or more wetted surface areas.

Ex Output:
two


Ex Input:
Anti depressants work differently to the benzos and they can take up to ____ weeks to work.

Ex Output:

six