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: type of sandwich 
Words: picnic, open-faced, club, grilled cheese, lettuce
answer:
picnic


question:
Category: baby animals 
Words: fawn, deer, buck, kitten, cajole
answer:
cajole


question:
Category: nutritional value 
Words: fat, obese, iron, sugar, sugars
answer:

obese


