Question: who attacked first the north or the south
[{'answer': 'the Confederate States Army', 'provenance': [{'wikipedia_id': '339819', 'title': 'Battle of Fort Sumter', 'start_paragraph_id': 1, 'start_character': 116, 'end_paragraph_id': 1, 'end_character': 143, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '339819', 'title': 'Battle of Fort Sumter', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 984, 'bleu_score': 0.8954108965834451, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 10238799182639492302}, 'section': 'Section::::Abstract.'}]}]