Question: what are the path ways of respiratory system
[{'answer': 'pharynx', 'provenance': [{'wikipedia_id': '287885', 'title': 'Respiratory tract', 'start_paragraph_id': 1, 'start_character': 415, 'end_paragraph_id': 1, 'end_character': 422, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'epiglottis', 'provenance': [{'wikipedia_id': '287885', 'title': 'Respiratory tract', 'start_paragraph_id': 1, 'start_character': 567, 'end_paragraph_id': 1, 'end_character': 577, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'mucous membrane', 'provenance': [{'wikipedia_id': '287885', 'title': 'Respiratory tract', 'start_paragraph_id': 44, 'start_character': 137, 'end_paragraph_id': 44, 'end_character': 152, 'bleu_score': 1.0, 'section': 'Section::::Function.:Defences against infection.\n'}]}, {'answer': 'esophagus', 'provenance': [{'wikipedia_id': '287885', 'title': 'Respiratory tract', 'start_paragraph_id': 1, 'start_character': 478, 'end_paragraph_id': 1, 'end_character': 487, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'larynx', 'provenance': [{'wikipedia_id': '287885', 'title': 'Respiratory tract', 'start_paragraph_id': 1, 'start_character': 496, 'end_paragraph_id': 1, 'end_character': 502, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '287885', 'title': 'Respiratory tract', 'start_paragraph_id': 1, 'start_character': 36, 'end_paragraph_id': 1, 'end_character': 673, 'bleu_score': 0.8496211205002421, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 12879992389612282089}, 'section': 'Section::::Abstract.'}]}]