query: SELECT DISTINCT ?item ?label ?sitelink WHERE {
    ?article schema:about ?item;
      schema:isPartOf <https://ar.wikipedia.org/>;
      schema:name ?sitelink.
    ?item rdfs:label ?label;
      wdt:P31 wd:Q16521.
    FILTER((LANG(?label)) = "ar")
    FILTER(?sitelink != ?label)
    FILTER("false"^^xsd:boolean = (CONTAINS(?sitelink, ")")))
  }
  LIMIT 7