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

Ex Input:
Most divorces take place after three to _ years of marriage.

Ex Output:
five

Ex Input:
Cancer can start in any of the _ sections or where the colon ends in the rectum.

Ex Output:
four

Ex Input:
Many animals use two or _ forest structure types.

Ex Output:
three