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:
Rabbits have ____ incisors in the upper jaw where rodents have only two.

Ex Output:
four


Ex Input:
Some animals can survive freezing, but ____ animals can survive grinding.

Ex Output:
no


Ex Input:
Fire point is the lowest temperature at which burning is sustained for ____ seconds.

Ex Output:

five