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: slow, shut, close, beside, out of service

SOLUTION: beside

PROBLEM: kind, down, sad, backward, emotionalities

SOLUTION: backward

PROBLEM: down, forward, unhappy, ground, falling

SOLUTION:
unhappy