Question: who won at the battle of stamford bridge
[{'answer': 'English', 'provenance': [{'wikipedia_id': '66662', 'title': 'Battle of Stamford Bridge', 'start_paragraph_id': 1, 'start_character': 146, 'end_paragraph_id': 1, 'end_character': 153, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]