Question: where does the protein in ensure come from
[{'answer': 'milk', 'provenance': [{'wikipedia_id': '6066671', 'title': 'Ensure', 'start_paragraph_id': 2, 'start_character': 193, 'end_paragraph_id': 2, 'end_character': 197, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'soy', 'provenance': [{'wikipedia_id': '6066671', 'title': 'Ensure', 'start_paragraph_id': 2, 'start_character': 235, 'end_paragraph_id': 2, 'end_character': 238, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '6066671', 'title': 'Ensure', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 254, 'bleu_score': 0.8479379714567421, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 8268022802732425076}, 'section': 'Section::::Abstract.'}]}]