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: arrest, fine, ticket, beautiful, custody

SOLUTION: beautiful

PROBLEM: warm, optimist, hot, relaxing, cool

SOLUTION: optimist

PROBLEM: loveful, down, emotional, backward, emotionalities

SOLUTION:
backward