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: employment activity 
Words: sack, inferno, promote, empower, fire
answer:
inferno


question:
Category: corporate 
Words: unyielding, firm, leverage, streamline, ceo
answer:

unyielding