Problem: Given the question: What is the question to: "The peso and dollar have been followed by other contemporary issues, including commemorative banknotes, private currency, and a quarter coin designed with Fort San Felipe del Morro in the face."? The topic is Currencies of Puerto Rico.
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The answer is:
"what is puerto rico currency?"

Problem: Given the question: What is the question to: "The 2006 Winter Olympics, officially known as the XX Olympic Winter Games, was a winter multi-sport event which was celebrated in Turin , Italy from February 10, 2006, through February 26, 2006."? The topic is 2006 Winter Olympics.
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The answer is:
"where were the Winter Olympics in 2006?"

Problem: Given the question: What is the question to: "HartsfieldJackson Atlanta International Airport is the busiest single airport in the United States."? The topic is List of the busiest airports in the United States.
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The answer is:
"what is busiest airport in US?"