def _assemble_active_form(self, stmt):
        """Example: p(HGNC:ELK1, pmod(Ph)) => act(p(HGNC:ELK1), ma(tscript))"""
        act_agent = Agent(stmt.agent.name, db_refs=stmt.agent.db_refs)
        act_agent.activity = ActivityCondition(stmt.activity, True)
        activates = stmt.is_active
        relation = get_causal_edge(stmt, activates)
        self._add_nodes_edges(stmt.agent, act_agent, relation, stmt.evidence)
Example: p(HGNC:ELK1, pmod(Ph)) => act(p(HGNC:ELK1), ma(tscript))