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: accomodation 
Words: apartment, cabin, squashed, smooth, flat
answer:
smooth


question:
Category: moral characteristic 
Words: unprejudiced, warm, fair, ok, balanced
answer:
warm


question:
Category: measurement unit 
Words: elbow, foot, ounce, yard, mile
answer:

elbow