Question: who won the first and second battle of bull run
[{'answer': 'Confederates', 'provenance': [{'wikipedia_id': '54492', 'title': 'Second Battle of Bull Run', 'start_paragraph_id': 16, 'start_character': 658, 'end_paragraph_id': 16, 'end_character': 670, 'bleu_score': 1.0, 'section': 'Section::::Background.:Prelude to battle.\n'}]}, {'provenance': [{'wikipedia_id': '54492', 'title': 'Second Battle of Bull Run', 'start_paragraph_id': 82, 'start_character': 0, 'end_paragraph_id': 82, 'end_character': 343, 'bleu_score': 0.9019629427251671, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2246623962987213651}, 'section': 'Section::::Aftermath.:Casualties.\n'}]}]