Given a category and a set of five words, find the word from the set that does not belong (i.e. is the least relevant) with the other words in the category. Words are separated by commas.

Ex Input:
Category: computers 
Words: ram, file, motherboard, organize, folder

Ex Output:
organize


Ex Input:
Category: geographical property 
Words: mountain, flat, hill, mansion, plain

Ex Output:
mansion


Ex Input:
Category: animal 
Words: cat, fish, shark, canoe, sea turtle

Ex Output:

canoe