answerEntity: The 1989 Loma Prieta earthquake: issues in medical control
graph: {'nodes': [{'type': 'QUESTIONS_ENTITY', 'name_': 'Q7944', 'id': 0, 'label': 'Earthquake'}, {'type': 'ANSWER_CANDIDATE_ENTITY', 'name_': 'Q41635909', 'id': 1, 'label': 'The 1989 Loma Prieta earthquake: issues in medical control'}], 'links': [{'name_': 'P921', 'source': 1, 'target': 0, 'label': 'main subject'}]}