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: season 
Words: climb, equinox, summer, fall, hiems

Answer: climb


Question: Category: geographical property 
Words: flat, horizontal, smooshed, elevation, house

Answer: house


Question: Category: temperature 
Words: positive, tropical, refreshing, cold, cool

Answer:
positive