Who was a member of the Second Triumvirate and a romantic interest of Queen Cleopatra?
{'directed': True, 'multigraph': False, 'graph': {}, 'nodes': [{'type': 'INTERNAL', 'name_': 'Q6581097', 'id': 0, 'label': 'male'}, {'type': 'INTERNAL', 'name_': 'Q467522', 'id': 1, 'label': 'Potone'}, {'type': 'INTERNAL', 'name_': 'Q486761', 'id': 2, 'label': 'classical antiquity'}, {'type': 'ANSWER_CANDIDATE_ENTITY', 'name_': 'Q6581072', 'id': 3, 'label': 'female'}, {'type': 'QUESTIONS_ENTITY', 'name_': 'Q635', 'id': 4, 'label': 'Cleopatra'}, {'type': 'QUESTIONS_ENTITY', 'name_': 'Q212079', 'id': 5, 'label': 'Second Triumvirate'}, {'type': 'INTERNAL', 'name_': 'Q5131728', 'id': 6, 'label': 'Cleopatra'}, {'type': 'INTERNAL', 'name_': 'Q20005243', 'id': 7, 'label': 'Lucius Octavius Balbus'}], 'links': [{'name_': 'P461', 'source': 0, 'target': 3, 'label': 'opposite of'}, {'name_': 'P2348', 'source': 1, 'target': 2, 'label': 'time period'}, {'name_': 'P21', 'source': 1, 'target': 3, 'label': 'sex or gender'}, {'name_': 'P461', 'source': 3, 'target': 0, 'label': 'opposite of'}, {'name_': 'P2348', 'source': 5, 'target': 2, 'label': 'time period'}, {'name_': 'P21', 'source': 6, 'target': 3, 'label': 'sex or gender'}, {'name_': 'P941', 'source': 6, 'target': 4, 'label': 'inspired by'}, {'name_': 'P21', 'source': 7, 'target': 0, 'label': 'sex or gender'}, {'name_': 'P157', 'source': 7, 'target': 5, 'label': 'killed by'}]}