Auschwitz-Birkenau State Museum
The site includes the main concentration camp at Auschwitz I and the remains of the concentration and extermination camp at Auschwitz II-Birkenau . 
<triplet> Auschwitz I <subj> extermination camp <obj> instance of <triplet> Auschwitz II-Birkenau <subj> extermination camp <obj> instance of