Complex sentence: The monument contains a bronze-relief, which depicts several images that refer to aspects of the prisoners' life at the camp and its creation and placement was organized by pupils of the Gymnasium am Kothen, a secondary school in Wuppertal.
Split into simpler sentences: The monument contains a bronze-relief, which depicts several images that refer to aspects of the prisoners' life at the camp. Its creation and placement was organized by pupils of the Gymnasium am Kothen, a secondary school in Wuppertal.