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: banned, fudge, invent, cupcake, loosen

A: cupcake
****
Q: group, clan, hamburger, club, bar

A: hamburger
****
Q: flamingo, crane, winch, egret, tackle

A:
tackle
****