Question: where does blood go when it leaves the pulmonary artery
[{'answer': 'lungs', 'provenance': [{'wikipedia_id': '598465', 'title': 'Pulmonary circulation', 'start_paragraph_id': 1, 'start_character': 151, 'end_paragraph_id': 1, 'end_character': 156, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'The pulmonary vein', 'provenance': [{'wikipedia_id': '598465', 'title': 'Pulmonary circulation', 'start_paragraph_id': 7, 'start_character': 228, 'end_paragraph_id': 7, 'end_character': 246, 'bleu_score': 1.0, 'section': 'Section::::Structure.:Lungs.\n'}]}, {'answer': 'into smaller pulmonary arteries that spread throughout the lungs'}, {'provenance': [{'wikipedia_id': '598465', 'title': 'Pulmonary circulation', 'start_paragraph_id': 7, 'start_character': 0, 'end_paragraph_id': 7, 'end_character': 303, 'bleu_score': 0.957870874785216, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 15655475951581164030}, 'section': 'Section::::Structure.:Lungs.\n'}]}, {'provenance': [{'wikipedia_id': '598465', 'title': 'Pulmonary circulation', 'start_paragraph_id': 11, 'start_character': 0, 'end_paragraph_id': 11, 'end_character': 226, 'bleu_score': 0.943604326170661, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 15655475951581164030}, 'section': 'Section::::Structure.:Arteries.\n'}]}, {'provenance': [{'wikipedia_id': '598465', 'title': 'Pulmonary circulation', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 0, 'bleu_score': 1.0, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 15655475951581164030}, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '5567096', 'title': 'Ventricular outflow tract', 'section': 'Section::::Abstract.', 'start_paragraph_id': 2, 'end_paragraph_id': 2, 'meta': {'evidence_span': ['A ventricular outflow tract is a portion of either the left ventricle or right ventricle of the heart through which blood passes in order to enter the great arteries. The right ventricular outflow tract (RVOT) is an infundibular extension of the ventricular cavity which connects to the pulmonary artery. The left ventricular outflow tract (LVOT), which connects to the aorta, is nearly indistinguishable from the rest of the ventricle. The outflow tract is derived from the secondary heart field, during cardiogenesis. Both the left and right outflow tract have', 'A ventricular outflow tract is a portion of either the left ventricle or right ventricle of the heart through which blood passes in order to enter the great arteries.']}}]}, {'provenance': [{'wikipedia_id': '598465', 'title': 'Pulmonary circulation', 'section': 'Section::::Abstract.', 'start_paragraph_id': 1, 'end_paragraph_id': 1, 'meta': {'evidence_span': ['The pulmonary circulation is the portion of the circulatory system which carries deoxygenated blood away from the right ventricle of the heart, to the lungs, and returns oxygenated blood to the left atrium and ventricle of the heart. The term pulmonary circulation is readily paired and contrasted with the systemic circulation. The vessels of the pulmonary circulation are the pulmonary arteries and the pulmonary veins.', 'The pulmonary circulation is the portion of the circulatory system which carries deoxygenated blood away from the right ventricle of the heart, to the lungs, and returns oxygenated blood to the left atrium and ventricle of the heart. The term pulmonary circulation is readily paired and contrasted with the systemic circulation. The vessels of the pulmonary circulation are the pulmonary arteries and the pulmonary veins.']}}]}, {'provenance': [{'wikipedia_id': '509921', 'title': 'Pulmonary artery', 'section': 'Section::::Abstract.', 'start_paragraph_id': 1, 'end_paragraph_id': 1, 'meta': {'evidence_span': ['A pulmonary artery is an artery in the pulmonary circulation that carries deoxygenated blood from the right side of the heart to the lungs. The largest pulmonary artery is the "main pulmonary artery" or "pulmonary trunk" from the heart, and the smallest ones are the arterioles, which lead to the capillaries that surround the pulmonary alveoli. In order of blood flow, the pulmonary arteries start as the pulmonary trunk or main pulmonary artery. The main pulmonary artery begins at the base of the right ventricle.', 'A pulmonary artery is an artery in the pulmonary circulation that carries deoxygenated blood from the right side of the heart to the lungs. The largest pulmonary artery is the "main pulmonary artery" or "pulmonary trunk" from the heart, and the smallest ones are the arterioles, which lead to the capillaries that surround the pulmonary alveoli. In order of blood flow, the pulmonary arteries start as the pulmonary trunk or main pulmonary artery. The main pulmonary artery begins at the base of the right ventricle. It is short and']}}]}]