Which German composer never got married?
{'directed': True, 'multigraph': False, 'graph': {}, 'nodes': [{'type': 'QUESTIONS_ENTITY', 'name_': 'Q42884', 'id': 0, 'label': 'Germans'}, {'type': 'ANSWER_CANDIDATE_ENTITY', 'name_': 'Q254', 'id': 1, 'label': 'Wolfgang Amadeus Mozart'}, {'type': 'INTERNAL', 'name_': 'Q6927871', 'id': 2, 'label': "Mozart's nationality"}], 'links': [{'name_': 'P460', 'source': 2, 'target': 0, 'label': 'said to be the same as'}, {'name_': 'P1269', 'source': 2, 'target': 1, 'label': 'facet of'}]}