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: Elderberry supplements seem to have few risks when used daily for up to ____ days.
Example Output: five

Example Input: China has about one in ____ of all smokers in the world.
Example Output: four

Example Input: Digestive warmth is the key to the success of the entire process of keeping ____ humors in balance.
Example Output:
three