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: accomodation 
Words: mansion, mountain, flat, house, duplex

SOLUTION: mountain

PROBLEM: Category: poker 
Words: level, blind, pack, draw, deck

SOLUTION: level

PROBLEM: Category: aesthetic characteristic 
Words: level, light, fair, clime, color

SOLUTION:
clime