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:
blocking, crew, jab, deck, glove

Ex Output:
crew


Ex Input:
truss rod, pick, chord, worried, fret

Ex Output:
worried


Ex Input:
upraise, crane, excavator, digger, hoist

Ex Output:

hoist