How many brothers does Ron Weasley have?
{'directed': True, 'multigraph': False, 'graph': {}, 'nodes': [{'type': 'QUESTIONS_ENTITY', 'name_': 'Q173998', 'id': 0, 'label': 'Ron Weasley'}, {'type': 'INTERNAL', 'name_': 'Q102438', 'id': 1, 'label': "Harry Potter and the Philosopher's Stone"}, {'type': 'ANSWER_CANDIDATE_ENTITY', 'name_': 'Q13359613', 'id': 2, 'label': 'George Weasley'}], 'links': [{'name_': 'P674', 'source': 1, 'target': 0, 'label': 'characters'}, {'name_': 'P674', 'source': 1, 'target': 2, 'label': 'characters'}]}