query: SELECT ?item (COUNT(?item) as ?count) WHERE {
    {
      SELECT DISTINCT ?item ?pditem WHERE 
      {
        hint:Query hint:optimizer "None" . 
        BIND (wd:Q131626 AS ?institution)
        ?item rdf:type wikibase:Property .
        ?item wdt:P31/wdt:P279* wd:Q19847637 .
    { ?item wdt:P2378/wdt:P749* ?institution . } 
    UNION
    { ?item wdt:P2378/wdt:P2652* ?institution . } 
    UNION 
    { ?item wdt:P361/wdt:P279* ?institution . }
        ?item wikibase:directClaim ?pditem .
      }
    }
    ?qitem ?pditem ?id .
  } GROUP BY ?item ?itemLabel
  ORDER BY DESC (?count)