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: personal characteristic 
Words: assured, refreshing, unruffled, cool, positive
answer:
refreshing


question:
Category: widespread 
Words: regular, colonel, typical, ordinary, general
answer:
colonel


question:
Category: weather 
Words: sunny, luke, cool, stormy, fair
answer:

cool