Question: how many goals did sanchez score for arsenal
[{'answer': '54', 'provenance': [{'wikipedia_id': '5901324', 'title': 'Alexis Sánchez', 'start_paragraph_id': 22, 'start_character': 271, 'end_paragraph_id': 22, 'end_character': 273, 'bleu_score': 1.0, 'section': 'Section::::Club career.:Barcelona.\n'}]}]