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: mode of transportation 
Words: bee, swim, fly, car, walk

SOLUTION: bee

PROBLEM: Category: weather 
Words: 70, warm, ok, fair, endure

SOLUTION:
ok