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:
Variable stars fall into ____ major physical classifications.

Ex Output:
four


Ex Input:
Martial arts are multi-sensory, combining all ____ modalities in classes.

Ex Output:
three


Ex Input:
Acids are harmful in ____ ways.

Ex Output:

two