Question: who helped lead the french army to victory at orleans
[{'answer': 'Jean de Dunois', 'provenance': [{'wikipedia_id': '60984', 'title': 'Siege of Orléans', 'start_paragraph_id': 42, 'start_character': 544, 'end_paragraph_id': 42, 'end_character': 558, 'bleu_score': 1.0, 'section': "Section::::Joan's arrival at Orléans.\n"}]}]