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: ecstatic, content, disappointed, sad, service

SOLUTION: service

PROBLEM: jog, car, bike, bats, fly

SOLUTION: bats

PROBLEM: size, fair, well, ok, decent

SOLUTION:
size