Question: why does carbon dioxide increase in the body
[{'answer': 'hypoventilation', 'provenance': [{'wikipedia_id': '497803', 'title': 'Hypercapnia', 'start_paragraph_id': 7, 'start_character': 35, 'end_paragraph_id': 7, 'end_character': 50, 'bleu_score': 1.0, 'section': 'Section::::Causes.\n'}]}, {'answer': 'lung disease', 'provenance': [{'wikipedia_id': '497803', 'title': 'Hypercapnia', 'start_paragraph_id': 7, 'start_character': 52, 'end_paragraph_id': 7, 'end_character': 64, 'bleu_score': 1.0, 'section': 'Section::::Causes.\n'}]}, {'answer': 'diminished consciousness', 'provenance': [{'wikipedia_id': '497803', 'title': 'Hypercapnia', 'start_paragraph_id': 7, 'start_character': 69, 'end_paragraph_id': 7, 'end_character': 93, 'bleu_score': 1.0, 'section': 'Section::::Causes.\n'}]}, {'provenance': [{'wikipedia_id': '497803', 'title': 'Hypercapnia', 'start_paragraph_id': 7, 'start_character': 0, 'end_paragraph_id': 7, 'end_character': 375, 'bleu_score': 0.704392148093944, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 480153814335205262}, 'section': 'Section::::Causes.\n'}]}]