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: place, bar, doorstep, club, outing
answer:
doorstep


question:
Category: window material 
Words: glass, spyhole, handle, coating, knive
answer:
knive


question:
Category: animals 
Words: swan, sheep, horse, duck, dodge
answer:

dodge