query: SELECT ?item ?itemLabel (sample(?demonym) as ?d)  (sample(year(?dob)) as ?dob)  (sample(year(?dod)) as ?dod) where
  {
    ?item wdt:P106 wd:Q19204627.
    optional {?item rdfs:label ?itemLabel. filter(lang(?itemLabel)="en")}
    filter not exists {?item schema:description ?Lde. filter(lang(?Lde)="en")}
    optional {?item wdt:P27 ?country.  
              ?country wdt:P1549 ?demonym. filter(lang(?demonym )="en")}
    optional {?item wdt:P569 ?dob .}
    optional {?item wdt:P570 ?dod .}
    
    } group by  ?item ?itemLabel 