query: SELECT ?cause ?causeLabel ?count {
    {
      SELECT ?cause (COUNT(?statement) AS ?count) WHERE {
        ?person p:P39 ?statement .
        ?statement pq:P1534 ?cause
      } GROUP BY ?cause
    }
    SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
  } ORDER BY DESC(?count)