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, beetle, leap, ant, fly

SOLUTION: bike

PROBLEM: even, size, fair, level, ok

SOLUTION: ok

PROBLEM: skinny, protein, calories, iron, fat

SOLUTION:
skinny