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]: ecstatic, specialty, substance, content, merchandise
[A]: ecstatic


[Q]: dumpling, fritter, goodbye, pastry, skin
[A]: goodbye


[Q]: grilled cheese, french toast, outing, burger, club
[A]:
outing