Question: where does the pulmonary trunk receive blood from
[{'answer': 'the heart', 'provenance': [{'wikipedia_id': '509921', 'title': 'Pulmonary artery', 'start_paragraph_id': 1, 'start_character': 116, 'end_paragraph_id': 1, 'end_character': 125, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'from the heart', 'provenance': [{'wikipedia_id': '509921', 'title': 'Pulmonary artery', 'start_paragraph_id': 1, 'start_character': 221, 'end_paragraph_id': 1, 'end_character': 235, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'the right ventricle', 'provenance': [{'wikipedia_id': '509921', 'title': 'Pulmonary artery', 'start_paragraph_id': 3, 'start_character': 150, 'end_paragraph_id': 3, 'end_character': 169, 'bleu_score': 1.0, 'section': 'Section::::Pulmonary arterial tree.\n'}]}, {'answer': 'the right side of the heart'}, {'provenance': [{'wikipedia_id': '509921', 'title': 'Pulmonary artery', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 344, 'bleu_score': 0.9645876452711911, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 14400819009805281607}, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '509921', 'title': 'Pulmonary artery', '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': 14400819009805281607}, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '509921', 'title': 'Pulmonary artery', 'start_paragraph_id': 3, 'start_character': 0, 'end_paragraph_id': 3, 'end_character': 231, 'bleu_score': 0.734676854273111, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 14400819009805281607}, 'section': 'Section::::Pulmonary arterial tree.\n'}]}, {'provenance': [{'wikipedia_id': '509921', 'title': 'Pulmonary artery', 'section': 'Section::::Pulmonary arterial tree.\n', 'start_paragraph_id': 3, 'end_paragraph_id': 3, 'meta': {'evidence_span': ['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.', '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 wideapproximately in length and in diameter.', '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.']}}]}, {'provenance': [{'wikipedia_id': '598465', 'title': 'Pulmonary circulation', 'section': 'Section::::Structure.:Arteries.\n', 'start_paragraph_id': 11, 'end_paragraph_id': 11, 'meta': {'evidence_span': ['. From the right ventricle, blood is pumped through the semilunar pulmonary valve into the left and right main pulmonary arteries (one for each lung), which branch into smaller pulmonary arteries that spread throughout the lungs', 'The blood is then distributed to the body through the systemic circulation before returning again to the pulmonary circulation. From the right ventricle, blood is pumped through the semilunar pulmonary valve into the left and right main pulmonary arteries (one for each lung), which branch into smaller pulmonary arteries that spread throughout the lungs.', 'rom the right ventricle, blood is pumped through the semilunar pulmonary valve into the left and right main pulmonary arteries (one for each lung), which branch into smaller pulmonary arteries that spread throughout the lungs.']}}]}, {'provenance': [{'wikipedia_id': '509921', 'title': 'Pulmonary artery', 'section': 'Section::::Function.:Pressure.\n', 'start_paragraph_id': 16, 'end_paragraph_id': 16, 'meta': {'evidence_span': ['The pulmonary artery carries deoxygenated blood from the right ventricle to the lungs', 'The pulmonary artery carries deoxygenated blood from the right ventricle to the lungs. The blood here passes through capillaries adjacent to alveoli and becomes oxygenated as part of the process of respiration. In contrast to the "pulmonary arteries", the bronchial arteries supply nutrition to the lungs themselves. The pulmonary artery pressure (PA pressure) is a measure of the blood pressure found in the main pulmonary artery.', 'The pulmonary artery carries deoxygenated blood from the right ventricle to the lungs.']}}]}]