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: animal 
Words: train, fly, jump, leap, grasshopper

Answer: train


Question: Category: emotional status 
Words: fret, emotional supports, output cord, angry, concerned

Answer: output cord


Question: Category: social gathering 
Words: grilled cheese, place, club, dance hall, meeting

Answer:
grilled cheese