query: #title: Suggestion: under 19 year old
  # Complex constraint from [[Property talk:P4124]]
  #
  SELECT ?item ?born ?diff {
    ?item wdt:P4124 ?value .
    ?item wdt:P569 ?born.
    BIND (YEAR(NOW()) - YEAR(?born) AS ?diff)
    FILTER (?diff < 19)
  }
  ORDER BY DESC (?born)