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: direction 
Words: down, opposite of up, sliding, forward, emotional state

Answer: emotional state


Question: Category: weather 
Words: 70, endure, decent, cold, fair

Answer: decent


Question: Category: social gathering 
Words: meeting, dance hall, roll, club, team

Answer:
roll