def add(self, (s, p, o)):
        """Add a triple with self as context"""
        assert isinstance(s, Node), \
            "Subject %s must be an rdflib term" % (s,)
        assert isinstance(p, Node), \
            "Predicate %s must be an rdflib term" % (p,)
        assert isinstance(o, Node), \
            "Object %s must be an rdflib term" % (o,)
        self.__store.add((s, p, o), self, quoted=False)
dataset/ETHPy150Open RDFLib/rdflib/rdflib/graph.py/Graph.add/original