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: Most litters contain two to ____ kittens.
Example Output: four

Example Input: Adult clothing is worth about ____ percent of retail and children's clothing a little more.
Example Output: ten

Example Input: Pure phosphorus exists in ____ forms - red, white, yellow.
Example Output:
three