query: SELECT ?entity ?entityLabel ?entityDescription 
  WHERE
  {
    ?entity wdt:P1343 wd:Q78782867; p:P1343 [ prov:wasDerivedFrom [ pr:P304 ?page ] ] . 
    MINUS { ?entity wdt:P31 []; wdt:P1343 wd:Q78782867; p:P1343 [ prov:wasDerivedFrom [ pr:P304 ?page ] ]  } 
    SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en" }
  }
  LIMIT 1000