docs: def convert_to_uri(self, value, strip_iri=True):
          ''' converts a prefixed rdf ns equivalent value to its uri form.
              If not found returns the value as is
  
              args:
                  value: the URI/IRI to convert
                  strip_iri: removes the < and > signs
                  rdflib_uri: returns an rdflib URIRef
              '''
          parsed = self.parse_uri(str(value))
  
          try:
              new_uri = "%s%s" % (self.ns_dict[parsed[0]], parsed[1])
              if not strip_iri:
                  return self.iri(new_uri)
              return new_uri
          except KeyError:
              return self.rpyhttp(value)