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: pie, fried, misuse, fritter, cake

SOLUTION: misuse

PROBLEM: concerned, strap lock, anxious, bored, fret

SOLUTION: strap lock

PROBLEM: grub, entree, frank, stern, goodies

SOLUTION:
stern