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 []}.  
    FILTER NOT EXISTS {?item wdt:P569 []}.  
  }