Question: where is the alveoli located in the human body
[{'answer': 'lung parenchyma', 'provenance': [{'wikipedia_id': '102359', 'title': 'Pulmonary alveolus', 'start_paragraph_id': 1, 'start_character': 122, 'end_paragraph_id': 1, 'end_character': 137, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '102359', 'title': 'Pulmonary alveolus', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 695, 'bleu_score': 0.9591116223104591, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 10581386302314248283}, 'section': 'Section::::Abstract.'}]}]