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

Example Input: Lightning can travel _ miles or more horizontally from the storm, then strike the ground.
Example Output: six

Example Input: Death usually occurs by five to _ years of life due to pneumonia or other infections.
Example Output: eight

Example Input: Most crops require at least _ to eight hours of full sun a day to thrive.
Example Output:
six