In this task, find the most appropriate number to replace the blank (indicated with _ ) and express it in words.

Example Input: Normal adults appear to require _ to eight hours of sleep per day on average.
Example Output: six

Example Input: Cancer can develop in any of the _ sections of the colon or in the rectum.
Example Output: four

Example Input: Tobacco use is responsible for nearly _ in five deaths in the United States.
Example Output:
one