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: Elves are the first of the ____ families of fairy People.
Example Output: eight

Example Input: Some children start asking questions when they're ____ or five years old.
Example Output: four

Example Input: Coyotes are pack animals, and a female usually has ____ pups.
Example Output:
six