query: SELECT ?item ?itemLabel ?ref ?refLabel ?coord WHERE {
    ?item wdt:P31 wd:Q55488.
    ?item wdt:P17 wd:Q39.
    ?item p:P625 [ ps:P625 ?coord;
                           prov:wasDerivedFrom
                           [pr:P143 ?ref;
                                    ]
                           ].
    ?article schema:about ?item .
    ?article schema:isPartOf <https://en.wikipedia.org/>.
    SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
  }