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: Insomnia can be short-lived, lasting only one to ____ nights.
Example Output: two

Example Input: White men are almost ____ times more likely to develop cancer of the testicles than are black men.
Example Output: five

Example Input: Back problems affect nine out of ____ people at some time in their life.
Example Output:
ten