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: aesthetic characteristic 
Words: well, milky, variety, tone, fair

Answer: well


Question: Category: emotional status 
Words: downward, unhappy, down, shameful, disgusted

Answer: downward


Question: Category: outdoor sport activity 
Words: raft, fish, canoe, row, goat

Answer:
goat


