answerEntity: Roman Britain
graph: {'nodes': [{'type': 'INTERNAL', 'name_': 'Q33506', 'id': 0, 'label': 'museum'}, {'type': 'QUESTIONS_ENTITY', 'name_': 'Q1356352', 'id': 1, 'label': 'Victoria Memorial'}, {'type': 'ANSWER_CANDIDATE_ENTITY', 'name_': 'Q185103', 'id': 2, 'label': 'Roman Britain'}, {'type': 'INTERNAL', 'name_': 'Q58372973', 'id': 3, 'label': 'A Note on the Diploma in the Corinium Museum, Cirencester'}], 'links': [{'name_': 'P31', 'source': 1, 'target': 0, 'label': 'instance of'}, {'name_': 'P921', 'source': 3, 'target': 0, 'label': 'main subject'}, {'name_': 'P921', 'source': 3, 'target': 2, 'label': 'main subject'}]}