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: confident, popular, classy, cool, chill

A: chill
****
Q: canvas, deck, corner, apron, queen

A: queen
****
Q: obese, fat, iron, capacitance, bulky

A:
iron
****