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: poker 
Words: level, blind, pack, draw, deck

Answer: level


Question: Category: physical activity 
Words: trip, jump, fall, equinox, exercise

Answer: equinox


Question: Category: animal 
Words: whale, trap, fish, stingray, iguana

Answer:
trap