query: SELECT ?language ?languageLabel (GROUP_CONCAT(?caseLabel; separator = ", ") AS ?cases) WHERE {
    ?language wdt:P2989 ?case.
    SERVICE wikibase:label {
      bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en".
      ?language rdfs:label ?languageLabel.
      ?case rdfs:label ?caseLabel.
    }
  }
  GROUP BY ?language ?languageLabel
  ORDER BY DESC(COUNT(?case))