Task: Question Answering
Input (English): Passage: Pulmonary vein -- At the root of the lung, the right superior pulmonary vein lies in front of and a little below the pulmonary artery; the inferior is situated at the lowest part of the lung hilum. Behind the pulmonary artery is the bronchus. The right main pulmonary veins (contains oxygenated blood) pass behind the right atrium and superior vena cava; the left in front of the descending thoracic aorta.
Question: does the right side of the heart carry oxygenated blood
Output (English): 1