Question: who won the battle of las navas de tolosa
[{'answer': 'Christian', 'provenance': [{'wikipedia_id': '163391', 'title': 'Battle of Las Navas de Tolosa', 'start_paragraph_id': 1, 'start_character': 211, 'end_paragraph_id': 1, 'end_character': 220, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]