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

Example Input: Sexual maturity occurs at _ years of age.
Example Output: ten

Example Input: Southern moles are six to seven inches long and weigh _ to four ounces.
Example Output: three

Example Input: Acute colitis occurs most commonly in dogs and frequently responds to one to _ weeks of therapy.
Example Output:
three