Question: who wrote the battle hym of the republic
[{'answer': 'Julia Ward Howe', 'provenance': [{'wikipedia_id': '312603', 'title': 'Battle Hymn of the Republic', 'start_paragraph_id': 1, 'start_character': 149, 'end_paragraph_id': 1, 'end_character': 164, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '312603', 'title': 'Battle Hymn of the Republic', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 576, 'bleu_score': 0.931187671878629, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 291460388818971090}, 'section': 'Section::::Abstract.'}]}]