Which was a bigger empire, the Ottoman Empire or British Empire?
{'directed': True, 'multigraph': False, 'graph': {}, 'nodes': [{'type': 'ANSWER_CANDIDATE_ENTITY', 'name_': 'Q15', 'id': 0, 'label': 'Africa'}, {'type': 'QUESTIONS_ENTITY', 'name_': 'Q12560', 'id': 1, 'label': 'Ottoman Empire'}, {'type': 'QUESTIONS_ENTITY', 'name_': 'Q8680', 'id': 2, 'label': 'British Empire'}, {'type': 'INTERNAL', 'name_': 'Q5440850', 'id': 3, 'label': 'Federation of Nigeria'}], 'links': [{'name_': 'P30', 'source': 1, 'target': 0, 'label': 'continent'}, {'name_': 'P17', 'source': 1, 'target': 1, 'label': 'country'}, {'name_': 'P30', 'source': 3, 'target': 0, 'label': 'continent'}, {'name_': 'P17', 'source': 3, 'target': 2, 'label': 'country'}, {'name_': 'P17', 'source': 3, 'target': 3, 'label': 'country'}]}