Question: where are most substances absorbed into the blood
[{'answer': 'the small intestine', 'provenance': [{'wikipedia_id': '165423', 'title': 'Digestion', 'start_paragraph_id': 1, 'start_character': 228, 'end_paragraph_id': 1, 'end_character': 247, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '165423', 'title': 'Digestion', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 667, 'bleu_score': 0.9812185674664711, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 7985864956707507368}, 'section': 'Section::::Abstract.'}]}]