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: bike, flap, fly, walk, wave

SOLUTION: walk

PROBLEM: fly, swim, waggle, soar, wave

SOLUTION: waggle

PROBLEM: fair, raining, warm, luke, balanced

SOLUTION:
balanced