TASK DEFINITION: Given a set of five words, generate the word from the set that does not belong (i.e. is the least relevant) with the other words. Words are separated by commas.
PROBLEM: deal, fair, endure, windy, ghostly

SOLUTION: ghostly

PROBLEM: format, image, fax, file, folder

SOLUTION: fax

PROBLEM: thin, calories, fat, obese, chunky

SOLUTION:
calories