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

Ex Input:
Tourism is among the _ largest industries in each of the western states.

Ex Output:
three

Ex Input:
Cancer can develop in any of the _ sections of the colon or in the rectum.

Ex Output:
four

Ex Input:
Piglets normally grow about half their potential growth rate from birth to _ weeks of age.

Ex Output:
three