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: Dogs have to be ____ months old before they are spayed or neutered.
Example Output: six

Example Input: Girls have ____ ovaries.
Example Output: two

Example Input: Red raspberries can be either of ____ types.
Example Output:
two