query: #defaultView:Graph
  SELECT ?item ?itemLabel ?_image ?_subclass_of ?_subclass_ofLabel  WHERE {
    ?item wdt:P31 wd:Q188451.
    SERVICE wikibase:label { bd:serviceParam wikibase:language "en". }
    OPTIONAL { ?item wdt:P279 ?_subclass_of. }
    OPTIONAL { ?item wdt:P18 ?_image. }
  }