Which building in the Harry Potter series was located in Diagon Alley and was the storage place of a Horcrux?
{'directed': True, 'multigraph': False, 'graph': {}, 'nodes': [{'type': 'QUESTIONS_ENTITY', 'name_': 'Q8337', 'id': 0, 'label': 'Harry Potter'}, {'type': 'QUESTIONS_ENTITY', 'name_': 'Q10298203', 'id': 1, 'label': 'Horcrux'}, {'type': 'QUESTIONS_ENTITY', 'name_': 'Q834374', 'id': 2, 'label': 'Diagon Alley'}, {'type': 'ANSWER_CANDIDATE_ENTITY', 'name_': 'Q187923', 'id': 3, 'label': 'Ginny Weasley'}, {'type': 'INTERNAL', 'name_': 'Q845403', 'id': 4, 'label': 'Nagini'}], 'links': [{'name_': 'P674', 'source': 0, 'target': 3, 'label': 'characters'}, {'name_': 'P1441', 'source': 2, 'target': 0, 'label': 'present in work'}, {'name_': 'P1441', 'source': 4, 'target': 0, 'label': 'present in work'}, {'name_': 'P31', 'source': 4, 'target': 1, 'label': 'instance of'}]}