answerEntity: Lucius Aelius Caesar
graph: {'nodes': [{'type': 'QUESTIONS_ENTITY', 'name_': 'Q842606', 'id': 0, 'label': 'Roman emperor'}, {'type': 'INTERNAL', 'name_': 'Q1427', 'id': 1, 'label': 'Hadrian'}, {'type': 'ANSWER_CANDIDATE_ENTITY', 'name_': 'Q455034', 'id': 2, 'label': 'Lucius Aelius Caesar'}], 'links': [{'name_': 'P39', 'source': 1, 'target': 0, 'label': 'position held'}, {'name_': 'P40', 'source': 1, 'target': 2, 'label': 'child'}, {'name_': 'P1038', 'source': 2, 'target': 1, 'label': 'relative'}]}