query: #defaultView:BubbleChart
  SELECT ?cause ?causeLabel (COUNT(?person) AS ?count)
  WHERE
  {
    ?person wdt:P31 wd:Q5;
            wdt:P509 ?cause;
            wdt:P91 wd:Q6636.
    SERVICE wikibase:label { bd:serviceParam wikibase:language "en". }
  }
  GROUP BY ?cause ?causeLabel
  ORDER BY DESC(?count)