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: boats 
Words: deck, call, galley, bridge, stern

SOLUTION: call

PROBLEM: Category: nutritional value 
Words: sugar, calories, iron, fat, area

SOLUTION: area

PROBLEM: Category: chocolate food 
Words: falsehood, fudge, cookies, truffles, tart

SOLUTION:
falsehood