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: bird 
Words: winch, swallow, winch, crane, parrot

SOLUTION: winch

PROBLEM: Category: nutritional value 
Words: vitamin c, salt, sugar, fat, big boned

SOLUTION: big boned

PROBLEM: Category: chocolate food 
Words: tart, lie, chocolate cake, fudge, brownie

SOLUTION:
lie