Question: who won the battle of manassas bull run
[{'answer': 'Confederate victory', 'provenance': [{'wikipedia_id': '228867', 'title': 'First Battle of Bull Run', 'start_paragraph_id': 1, 'start_character': 207, 'end_paragraph_id': 1, 'end_character': 226, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '228867', 'title': 'First Battle of Bull Run', 'start_paragraph_id': 1, 'start_character': 17, 'end_paragraph_id': 1, 'end_character': 679, 'bleu_score': 0.8881289058339701, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 15056483011218891782}, 'section': 'Section::::Abstract.'}]}]