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: fly, swim, car, beetle, grasshopper

SOLUTION: car

PROBLEM: schedule, errands, file, schedule appointments, hardware

SOLUTION: hardware

PROBLEM: fine, happy, hot, neat, classy

SOLUTION:
happy