code: def delete_location(self):
          
          # normally this should only remove one triple each
          for s, p, o in self._graph.triples((None, GEO_NS.lat, None)):
              self._graph.remove((s, p, o))
          for s, p, o in self._graph.triples((None, GEO_NS.long, None)):
              self._graph.remove((s, p, o))
docs: Deletes all the `geo:lat` and `geo:long` metadata properties on your Thing