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: Macular degeneration comes in ____ forms, dry and wet.
Example Output: two

Example Input: Owls have ____ toes on each foot, like most birds.
Example Output: four

Example Input: Summer is the season of the midnight sun when it really never gets dark for almost ____ months.
Example Output:
three