Question: who wrote the music for the german national anthem
[{'answer': 'Austrian composer Joseph Haydn', 'provenance': [{'wikipedia_id': '8203', 'title': 'Deutschlandlied', 'start_paragraph_id': 3, 'start_character': 78, 'end_paragraph_id': 3, 'end_character': 108, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '8203', 'title': 'Deutschlandlied', 'start_paragraph_id': 3, 'start_character': 0, 'end_paragraph_id': 3, 'end_character': 473, 'bleu_score': 0.911983636112331, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 1327955005955335734}, 'section': 'Section::::Abstract.'}]}]