How many people comprised the Second Triumvirate?
{'directed': True, 'multigraph': False, 'graph': {}, 'nodes': [{'type': 'ANSWER_CANDIDATE_ENTITY', 'name_': 'Q486761', 'id': 0, 'label': 'classical antiquity'}, {'type': 'QUESTIONS_ENTITY', 'name_': 'Q212079', 'id': 1, 'label': 'Second Triumvirate'}], 'links': [{'name_': 'P2348', 'source': 1, 'target': 0, 'label': 'time period'}]}