query: #title: Items with P569 = "no value" (P31=Q5)
  # Complex constraint from [[Property talk:P569]]
  # People are all born at some point in time
  SELECT ?item ?itemLabel
    WHERE {
      ?item p:P569/a wdno:P569 ; wdt:P31 wd:Q5
      SERVICE wikibase:label { bd:serviceParam wikibase:language "en" }
    }
    LIMIT 100