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: employment activity 
Words: ban, fire, empower, sack, ground
answer:
ground


question:
Category: baby animals 
Words: calf, fawn, cub, cute, woods
answer:
cute


question:
Category: boats 
Words: chips, crew, bow, deck, bridge
answer:

chips