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: corner, ring, crew, deck, apron

SOLUTION: crew

PROBLEM: cool, unruffled, funny, chill, ethical

SOLUTION: chill

PROBLEM: walk, train, swim, fly, jog

SOLUTION:
walk