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: bowl, plastic, glass, panel, lead

SOLUTION: bowl

PROBLEM: alright, size, dishonest, fine, fair

SOLUTION: size

PROBLEM: hero, bacon, club, open-faced, discothek

SOLUTION:
discothek