Uckermark – Barnim I
It is located in northeastern Brandenburg , comprising the Uckermark district and most of the Barnim district . 
<triplet> Brandenburg <subj> Uckermark <obj> contains administrative territorial entity <subj> Barnim <obj> contains administrative territorial entity <triplet> Uckermark <subj> Brandenburg <obj> located in the administrative territorial entity <triplet> Barnim <subj> Brandenburg <obj> located in the administrative territorial entity