query: PREFIX xsd: <http://www.w3.org/2001/XMLSchema#>
  SELECT ?item ?itemLabel ?vervaardiger ?vervaardigerLabel WHERE {
    SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
    ?vervaardiger (wdt:P485|wdt:P6379) ?item.
    ?vervaardiger wdt:P570 ?death.
    ?item wdt:P17 wd:Q55
    FILTER(?death >= "1949-01-01T00:00:00Z"^^xsd:dateTime)
    FILTER(?death < "1950-01-01T00:00:00Z"^^xsd:dateTime)
  }