def METHOD_NAME(self):
    for card in self.index_cards:
        inter = card.get('interaction')
        if inter['interaction_type'] != 'complexes_with':
            continue
        ev = self._get_evidence(card)
        participant = inter.get('participant_a')
        entities = participant.get('entities')
        members = []
        for entity in entities:
            agent = self._get_agent(entity)
            if agent is not None:
                members.append(agent)
        if len(members) < 2:
            continue
        stmt = Complex(members, evidence=ev)
        self.statements.append(stmt)