query: SELECT DISTINCT ?item ?itemLabel WHERE {
    ?item wdt:P31 wd:Q5.
    ?item wdt:P106 wd:Q33231.
    ?item wdt:P6379 ?instelling.
    ?instelling wdt:P17 wd:Q55
    FILTER NOT EXISTS {?item wdt:P7763 []}.   
    ?item wdt:P569 ?born.
    FILTER (?born <= "1900-01-01T00:00:00Z"^^xsd:dateTime )
  }