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: social gathering 
Words: club, group, meeting, grilled cheese, convention
answer:
grilled cheese


question:
Category: guitar part 
Words: fret, notes, emotional upsets, output cord, truss rod
answer:
emotional upsets


question:
Category: emotional status 
Words: frustrated, fret, emotional state, bored, board
answer:

board