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: aesthetic characteristic 
Words: 70, variety, color, fair, light
answer:
70


question:
Category: consumer product 
Words: merchandise, happy, thing, content, service
answer:
happy


question:
Category: animal 
Words: whale, stingray, shark, hunt, fish
answer:

hunt