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

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

Example Input: Skunks tear out divots of turf that are _ to six inches in diameter.
Example Output: three

Example Input: Pear trees require _ to eight years to produce a commercial crop.
Example Output:
six