query: PREFIX xsd: <http://www.w3.org/2001/XMLSchema#>
  
  SELECT DISTINCT ?item ?itemLabel WHERE {
    SERVICE wikibase:label { bd:serviceParam wikibase:language "nl, en". }
  
    ?item wdt:P31 wd:Q5.
    ?item wdt:P570 ?death.
    ?item wdt:P6379 ?collectie.
    FILTER(YEAR(?death) = 1950)
     ?item p:P570/psv:P570 ?death_date_node .
     ?death_date_node wikibase:timePrecision ?deathPrecision .
    filter(?deathPrecision>=9)
  }