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: nutritional value 
Words: fat, protein, vitamin c, fiber, area
answer:
area


question:
Category: military rank 
Words: regular, major, general, soldier, cadet
answer:
regular


question:
Category: aesthetic characteristic 
Words: fair, tone, fine, ghostly, light
answer:

fine