Ans: the British government in 1939 in preparation for World War II
Ques: Keep Calm and Carry On is a motivational poster produced by the British government in 1939 in preparation for World War II. The poster was intended to raise the morale of the British public, threatened with widely predicted mass air attacks on major cities. Although 2.45 million copies were printed, and although the Blitz did in fact take place, the poster was hardly ever publicly displayed and was little known until a copy was rediscovered in 2000 at Barter Books, a bookshop in Alnwick. It has since been re-issued by a number of private companies, and has been used as the decorative theme for a range of products.

Where did the phrase keep calm and carry on originate?
CoT: To answer this question, we should know that: Keep Calm and Carry On is a motivational poster produced by the British government in 1939 in preparation for World War II.
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Ans: the systemic circulation
Ques: Context: The superior vena cava (SVC) is the superior of the two venae cavae, the great venous trunks that return deoxygenated blood from the systemic circulation to the right atrium of the heart. It is a large-diameter (24 mm), yet short, vein that receives venous return from the upper half of the body, above the diaphragm. (Venous return from the lower half, below the diaphragm, flows through the inferior vena cava.) The SVC is located in the anterior right superior mediastinum. It is the typical site of central venous access (CVA) via a central venous catheter or a peripherally inserted central catheter. Mentions of "the cava" without further specification usually refer to the SVC.

Question: the superior vena cava returns blood to the heart from the?
CoT: To answer this question, we should know that: The superior vena cava (SVC) is the superior of the two venae cavae, the great venous trunks that return deoxygenated blood from the systemic circulation to the right atrium of the heart.
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Ans: Gilbert Gottfried

Ques: Passage: Gilbert Gottfried (born February 28, 1955) is an American stand-up comedian, actor and voice actor. His numerous roles in film and television include voicing the parrot Iago in Disney's Aladdin, Digit in the children's cartoon / educational math-based show Cyberchase and Kraang Subprime in Teenage Mutant Ninja Turtles. Gottfried was also the voice of the Aflac Duck until 2011.

Question: Based on this passage, who does the voice for the aflac duck?
CoT: To answer the above question, the relevant sentence is: Gottfried was also the voice of the Aflac Duck until 2011.
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