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: sunny, loyal, tangle, fair, raining

SOLUTION: loyal

PROBLEM: Category: police punishment 
Words: wispy, fine, probation, calm, prime

SOLUTION: calm

PROBLEM: Category: social gathering 
Words: clan, place, club, community, toast

SOLUTION:
toast