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

Example Input: Any number divided by itself equals _ , except if that number is zero .
Example Output: one

Example Input: Adult muskrats average one foot in length and _ pounds in weight.
Example Output: three

Example Input: Cell groups are gatherings of at least _ people who meet regularly for a variety of purposes.
Example Output:
three