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: ring, deck, pack, box, level

SOLUTION: pack

PROBLEM: loveful, up, down, remorseful, melancholy

SOLUTION: up

PROBLEM: jail, arrest, acceptable, fine, firstrate

SOLUTION:
acceptable