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: crew, ring, deck, blocking, punch

SOLUTION: crew

PROBLEM: hot, optimist, cool, calm, relaxed

SOLUTION: hot

PROBLEM: roll, open-faced, community, club, submarine

SOLUTION:
community