def addN(self, quads):

        self.store.addN(
            (s, p, o, c) for s, p, o, c in quads
            if isinstance(c, QuotedGraph)
            and c.identifier is self.identifier
            and _assertnode(s, p, o)
            )
trivial function to get the interval seq[start:end] with requested ori
dataset/ETHPy150Open RDFLib/rdflib/rdflib/graph.py/QuotedGraph.addN--crossover with--dataset/ETHPy150Open cjlee112/pygr/pygr/nlmsa_utils.py/get_interval