instruction:
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.
question:
confident, popular, classy, cool, chill
answer:
chill


question:
duck, bend, ostrich, jog, stoop
answer:
ostrich


question:
dump truck, hoist, crane, windlass, excavator
answer:

hoist