query: SELECT (sample(?item) as ?sampleItem) (sample(?match_uri) as ?sampleURI) ?host (COUNT(?item) AS ?count)
   WHERE {
    ?item wdt:P1889 ?some_property_to_cut_down_the_query.
     ?item wdt:P2888|wdt:P1709  ?match_uri
     #?item wdt:P2888 ?match_uri .
      BIND (STRAFTER(str(?match_uri),"://") AS ?url) 
      BIND (STRBEFORE(?url, "/") AS ?host) 
  }
  GROUP BY ?host
  HAVING (?count > 1)
  ORDER BY DESC(?count)
  
  
  
  