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

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

Example Input: Economists divide resources into _ basic categories of land, labor, capital, and management.
Example Output: four

Example Input: Autism is _ times more common in boys than in girls.
Example Output:
four