 Complete the following phrase:  Bierówka is the location of World War II cemetery situated at Bierowskie Doły pictured, with unmarked mass graves of prisoners of the Szebnie concentration camp nearby, covering the entire perimeter. Notably, the old monument mentions only the Soviet prisoners of war from Szebnie. Over the course of the camps operation some 10,000 people perished there, including Soviet POWs, Polish Jews and 