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: crane, winch, mallet, winch, flamingo

SOLUTION: winch

PROBLEM: deck, check, joker, board, bridge

SOLUTION: bridge

PROBLEM: comfortable, detached, happy, fine, custody

SOLUTION:
custody