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: All orthodontists are dentists, but only about ____ percent of dentists are orthodontists.
Example Output: six

Example Input: Child care is provided for children ages six weeks through ____ years of age.
Example Output: four

Example Input: Some people have ____ symptoms after infection.
Example Output:
no