Question: where does the pulmonary circuit of the heart begin
[{'answer': 'the lungs', 'provenance': [{'wikipedia_id': '598465', 'title': 'Pulmonary circulation', 'start_paragraph_id': 1, 'start_character': 147, 'end_paragraph_id': 1, 'end_character': 156, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '598465', 'title': 'Pulmonary circulation', 'start_paragraph_id': 5, 'start_character': 0, 'end_paragraph_id': 5, 'end_character': 410, 'bleu_score': 0.723474123722676, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 7680092433022793794}, 'section': 'Section::::Structure.\n'}]}]