Question: where is protein broken down into amino acids
[{'answer': 'in the stomach', 'provenance': [{'wikipedia_id': '6531493', 'title': 'Protein (nutrient)', 'start_paragraph_id': 2, 'start_character': 131, 'end_paragraph_id': 2, 'end_character': 145, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '6531493', 'title': 'Protein (nutrient)', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 325, 'bleu_score': 0.96188712955549, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 18206184648709117125}, 'section': 'Section::::Abstract.'}]}]