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:
Coho usually live for ____ years and grow rapidly in their final year.

Ex Output:
three


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

Ex Output:
four


Ex Input:
Hibernation occurs for about ____ months.

Ex Output:

seven