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: physical property 
Words: obese, heavy, area, chunky, fat
answer:
heavy


question:
Category: police punishment 
Words: penalty, fine, money, arrest, alright
answer:
alright


question:
Category: animal 
Words: dive, flap, fly, fish, spider
answer:

flap