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.

Q: jack, string, crying, neck, fret

A: crying
****
Q: vitamin c, carbs, fiber, fat, thin

A: thin
****
Q: digger, hoist, davit, crane, neck

A:
neck
****