Question: who composed the music to the star spangled banner
[{'answer': 'John Stafford Smith', 'provenance': [{'wikipedia_id': '438202', 'title': 'John Stafford Smith', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 19, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '438202', 'title': 'John Stafford Smith', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 209, 'bleu_score': 0.83851300471302, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 13734730354486853200}, 'section': 'Section::::Abstract.'}]}]