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: acceptable, mad, fine, comfortable, probation

SOLUTION: probation

PROBLEM: corner, ring, crew, deck, apron

SOLUTION: crew

PROBLEM: blunt, harsh, courage, frank, bun

SOLUTION:
bun