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: recruit, replace, sack, heat, fire
answer:
heat


question:
Category: moral characteristic 
Words: mild, equitable, unprejudiced, trustworthy, fair
answer:
mild


question:
Category: police punishment 
Words: ok, probation, fine, hearing, jail time
answer:

ok