instruction:
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.
question:
Category: aesthetic characteristic 
Words: luke, fair, variety, tone, well
answer:
luke


question:
Category: direction 
Words: down, lower, emotional upsets, below, falling
answer:
emotional upsets


question:
Category: emotional status 
Words: string, fret, nervous, emotional upsets, emotional supports
answer:

string