Oberbergische Bahn
The Oberbergische Bahn ( RB 25 ) is a Regionalbahn rail service running between Cologne Hansaring and Lüdenscheid in the German state of North Rhine-Westphalia ( NRW ) . 
<triplet> Oberbergische Bahn <subj> Regionalbahn <obj> instance of <subj> North Rhine-Westphalia <obj> located in the administrative territorial entity <triplet> Lüdenscheid <subj> Oberbergische Bahn <obj> connecting service