I still don’t think this is a good solution because of the common CNLabelContactRelation prefix. It would be better to introduce a CNLabelContactRelation enum?

I still don’t think this is a good solution because of the common CNLabelContactRelation prefix. It would be better to introduce a CNLabelContactRelation enum? Then the enum cases would be much less painful. Or at least an empty enum as a namespace: enum CNLabelContactRelation { static let aunt = "…" static let auntFathersBrothersWife = "…" }