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: moral characteristic 
Words: clime, fine, fair, trustworthy, unjust

SOLUTION: clime

PROBLEM: Category: nutritional value 
Words: heavy, protein, fat, sugars, area

SOLUTION: area

PROBLEM: Category: bird 
Words: crane, davit, flamingo, tackle, heron

SOLUTION:
tackle