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: guitar part 
Words: neck, strap lock, fret, angry, notes
answer:
angry


question:
Category: location (proximity) 
Words: on top of, touching, finished for the day, close, right there
answer:
finished for the day


question:
Category: animal 
Words: stingray, sea turtle, fish, cow, hiking
answer:

hiking