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: emotional status 
Words: emotional, ground, ashamed, emotional upsets, down

Answer: ground


Question: Category: employment activity 
Words: scold, water, fire, praise, replace

Answer: water


Question: Category: weather 
Words: fair, mild, variety, sunny, cold

Answer:
variety