sentences:  It has two platform tracks and it is classified by Deutsche Bahn as a category 6 station.It is the only Hauptbahnhof in Germany, which in fact is not a "Bahnhof", but a "Haltepunkt" ("halt", defined in Germany as having no sets of points).It and Remscheid Hauptbahnhof are the only Hauptbahnhof stations which are served only by S-Bahn trains.