answerEntity: Novak Djokovic
graph: {'nodes': [{'type': 'QUESTIONS_ENTITY', 'name_': 'Q403', 'id': 0, 'label': 'Serbia'}, {'type': 'QUESTIONS_ENTITY', 'name_': 'Q8567', 'id': 1, 'label': '2008 Summer Olympics'}, {'type': 'ANSWER_CANDIDATE_ENTITY', 'name_': 'Q5812', 'id': 2, 'label': 'Novak Djokovic'}], 'links': [{'name_': 'P17', 'source': 0, 'target': 0, 'label': 'country'}, {'name_': 'P1532', 'source': 2, 'target': 0, 'label': 'country for sport'}, {'name_': 'P1344', 'source': 2, 'target': 1, 'label': 'participant in'}]}