query: # statements disputed by their subject
  SELECT ?subject ?subjectLabel ?propertyLabel ?objectLabel WHERE {
    ?property a wikibase:Property;
              wikibase:claim ?p;
              wikibase:statementProperty ?ps.
    ?subject ?p ?statement.
    ?statement ?ps ?object;
               pq:P1310 ?subject.
    SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
  }