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: Studies show that childhood obesity is epidemic and that one in ____ children is overweight.
Example Output: five

Example Input: Most bioluminescence is blue for ____ reasons.
Example Output: two

Example Input: Women live an average of ____ to seven years longer then men.
Example Output:
five