Question: absorption is a major function of the gi tract. how is absorption accomplished in the gi tract
[{'answer': 'active transport , facilitated diffusion', 'provenance': [{'wikipedia_id': '8282777', 'title': 'Gastrointestinal physiology', 'start_paragraph_id': 17, 'start_character': 315, 'end_paragraph_id': 17, 'end_character': 358, 'bleu_score': 1.0, 'section': 'Section::::Secretion.:Ions.\n'}]}, {'provenance': [{'wikipedia_id': '8282777', 'title': 'Gastrointestinal physiology', 'start_paragraph_id': 17, 'start_character': 0, 'end_paragraph_id': 17, 'end_character': 532, 'bleu_score': 0.9776501033621461, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 7828855428984730579}, 'section': 'Section::::Secretion.:Ions.\n'}]}]