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: townhome, mountain, studio, flat, apartment

SOLUTION: mountain

PROBLEM: geese, crouch, duck, elephant, mallet

SOLUTION: crouch

PROBLEM: goose, mallet, elephant, fall, duck

SOLUTION:
fall