Question: through which vessel does blood leave the heart to go to the lungs
[{'answer': 'pulmonary artery', 'provenance': [{'wikipedia_id': '598465', 'title': 'Pulmonary circulation', 'start_paragraph_id': 5, 'start_character': 152, 'end_paragraph_id': 5, 'end_character': 168, 'bleu_score': 1.0, 'section': 'Section::::Structure.\n'}]}, {'provenance': [{'wikipedia_id': '598465', 'title': 'Pulmonary circulation', 'start_paragraph_id': 5, 'start_character': 0, 'end_paragraph_id': 5, 'end_character': 410, 'bleu_score': 0.92860998190983, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 3534051948959727487}, 'section': 'Section::::Structure.\n'}]}]