def label(self, subject, default=''):
        """Query for the RDFS.label of the subject

        Return default if no label exists or any label if multiple exist.
        """
        if subject is None:
            return default
        return self.value(subject, RDFS.label, default=default, any=True)
dataset/ETHPy150Open RDFLib/rdflib/rdflib/graph.py/Graph.label/original