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.

Example Input: Ozone leaves ____ by-products except pure oxygen.
Example Output: no

Example Input: Deer mice have four toes on the forefeet and ____ toes on the hind feet.
Example Output: five

Example Input: Japan has ____ distinct seasons.
Example Output:
four