Question: who wrote the music for annie get your gun
[{'answer': 'Irving Berlin', 'provenance': [{'wikipedia_id': '286348', 'title': 'Annie Get Your Gun (musical)', 'start_paragraph_id': 1, 'start_character': 57, 'end_paragraph_id': 1, 'end_character': 70, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '286348', 'title': 'Annie Get Your Gun (musical)', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 315, 'bleu_score': 0.873294914575339, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 3848365311817381317}, 'section': 'Section::::Abstract.'}]}]