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.
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Question: windlass, excavator, crane, hummingbird, steam roller

Answer: hummingbird


Question: tangle, fair, impartial, dishonest, balanced

Answer: tangle


Question: spring, climb, hiems, equinox, fall

Answer:
climb