Question: volume of air lungs can hold at the end of maximum inhalation
[{'answer': 'about 6 litres', 'provenance': [{'wikipedia_id': '301329', 'title': 'Lung volumes', 'start_paragraph_id': 2, 'start_character': 58, 'end_paragraph_id': 2, 'end_character': 72, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '301329', 'title': 'Lung volumes', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 79, 'bleu_score': 0.8781879837907131, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 7611984292403074703}, 'section': 'Section::::Abstract.'}]}]