TASK DEFINITION: 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.
PROBLEM: Category: type of sandwich 
Words: roll, hoagie, bacon, club, community

SOLUTION: community

PROBLEM: Category: nutritional value 
Words: heavy, fat, protein, obese, carbs

SOLUTION: obese

PROBLEM: Category: weather 
Words: cold, fair, clime, variety, sunny

SOLUTION:
variety