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

Example Input: Catholic systems comprise _ of the twenty largest healthcare systems in the country.
Example Output: ten

Example Input: Calves grow quickly and are weaned from their mothers in only _ to four months.
Example Output: three

Example Input: Breast cancer is the most common cancer among women, affecting _ in eight females.
Example Output:
one