query: SELECT ?collection ?collectionLabel (count(?Dura_Europos) as ?count) WHERE {
    SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
    ?Dura_Europos wdt:P189 wd:Q464266.
    ?Dura_Europos wdt:P195 ?collection
  }
  group by ?collection ?collectionLabel