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:
hunt, whale, shark, fish, mice

Ex Output:
hunt


Ex Input:
variety, endure, level, fair, milky

Ex Output:
endure


Ex Input:
fret, output cord, chord, board, emotional supports

Ex Output:

emotional supports