def _add_outcome_provenance(self, association, outcome):
        """
        :param association: str association curie
        :param outcome: dict (json)
        :return: None
        """
        provenance = Provenance(self.graph)
        base = self.curie_map.get_base()

        provenance.add_agent_to_graph(base, 'Monarch Initiative')
        self.graph.addTriple(association, self.globaltt['asserted_by'], base)