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: military rank 
Words: general, fighter, normal, major, lieutenant

Answer: normal


Question: Category: physical property 
Words: obese, heavy, area, chunky, fat

Answer: heavy


Question: Category: emotional status 
Words: emotional upsets, down, sad, right, emotionalities

Answer:
right