query: SELECT ?item ?itemLabel ?date ?morts WHERE {
  
    ?item wdt:P31 wd:Q3199915.
    SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
    OPTIONAL{?item wdt:P585 ?date.}
    OPTIONAL{?item wdt:P1120 ?morts.}
    
  }