Question: who won the battle of port royal sound
[{'answer': 'Union', 'provenance': [{'wikipedia_id': '4326059', 'title': 'Battle of Port Royal', 'start_paragraph_id': 4, 'start_character': 248, 'end_paragraph_id': 4, 'end_character': 253, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]