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: weather 
Words: cold, 70, fair, well, luke

Answer: well


Question: Category: guitar part 
Words: frustrated, amp, string, fret, headstock

Answer: frustrated


Question: Category: accomodation 
Words: hotel, level, flat, even, lined

Answer:
lined