query: SELECT DISTINCT ?item ?itemLabel (GROUP_CONCAT(DISTINCT YEAR(?dob); separator=', ') AS ?birth_year) (GROUP_CONCAT(?occLabel; separator=', ') AS ?occupations) WHERE {
    ?item wdt:P27 wd:Q16957; p:P1447 [] .
    OPTIONAL {
      ?item wdt:P106/rdfs:label ?occLabel .
      FILTER(LANG(?occLabel) = 'en') .
    }
    OPTIONAL {
      ?item wdt:P569 ?dob .
    }
    SERVICE wikibase:label { bd:serviceParam wikibase:language 'en,de,fr' }
  } GROUP BY ?item ?itemLabel ?dob