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:
Hawks have ____ toes pointing forward and one pointing backwards.

Ex Output:
three


Ex Input:
Zygospores result from the fusion of ____ similar hyphal elements.

Ex Output:
two


Ex Input:
Symbols are important in a country where one in ____ people are illiterate.

Ex Output:

three