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: weather 
Words: even, tangle, mild, fair, 70

SOLUTION: even

PROBLEM: Category: animal 
Words: hamster, fish, tiger, canyoning, sea turtle

SOLUTION: canyoning

PROBLEM: Category: personal characteristic 
Words: tropical, cool, positive, funny, classy

SOLUTION:
tropical