answerEntity: Novak Djokovic
graph: {'nodes': [{'type': 'QUESTIONS_ENTITY', 'name_': 'Q1426', 'id': 0, 'label': 'Roger Federer'}, {'type': 'ANSWER_CANDIDATE_ENTITY', 'name_': 'Q5812', 'id': 1, 'label': 'Novak Djokovic'}], 'links': [{'name_': 'P3342', 'source': 0, 'target': 1, 'label': 'significant person'}, {'name_': 'P3342', 'source': 1, 'target': 0, 'label': 'significant person'}]}