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, specialty, substance, content, merchandise

SOLUTION: ecstatic

PROBLEM: group, blt, french toast, hamburger, club

SOLUTION: group

PROBLEM: knifer, coating, glass, fiberglass, acrylic

SOLUTION:
knifer