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

Ex Input:
fair, endure, mild, color, tangle

Ex Output:
color


Ex Input:
motherboard, folder, hardware, file, schedule appointments

Ex Output:
schedule appointments


Ex Input:
parrot, concrete pourer, crane, upraise, hoist

Ex Output:

parrot