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: physical property 
Words: thin, brittleness, heavy, angular momentum, fat

SOLUTION: heavy

PROBLEM: Category: consumer product 
Words: jealous, content, merchandise, jewelry, shop

SOLUTION: jealous

PROBLEM: Category: social gathering 
Words: cinema, club, bacon, meeting, bar

SOLUTION:
bacon