query: SELECT ?prez ?prezLabel ?item ?itemLabel ?desc ?child
  WHERE
  {
    ?prez wdt:P39 wd:Q11696.
    ?prez wdt:P31 wd:Q5.
    ?prez wdt:P40 ?child.
          ?prez p:P39 ?statement.
          ?statement ps:P39 wd:Q11696.
          ?statement pq:P580 ?starttime.
    ?child wdt:P40 ?item.
          MINUS{?prez p:P40 [ps:P40 ?child; pq:P1039 ?kinship]}.
    OPTIONAL{?child wdt:P569 ?dob2}.
    OPTIONAL{?item wdt:P569 ?dob}.
    OPTIONAL{?item wdt:P570 ?dod}.
    OPTIONAL{?item schema:description ?desc
          FILTER(lang(?desc)="en")}.
    SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE]". }
  } ORDER BY ?starttime ?dob2 ?dob