Given a category and a set of five words, find the word from the set that does not belong (i.e. is the least relevant) with the other words in the category. Words are separated by commas.
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Question: Category: weather 
Words: 70, endure, decent, cold, fair

Answer: decent


Question: Category: poker 
Words: fold, blind, deck, draw, box

Answer: box


Question: Category: elements 
Words: cool, fire, water, flame, retire

Answer:
retire