Question: who won the battle of kursk in world war ii
[{'answer': 'Soviet', 'provenance': [{'wikipedia_id': '33102', 'title': 'Battle of Kursk', 'start_paragraph_id': 1, 'start_character': 73, 'end_paragraph_id': 1, 'end_character': 79, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]