In this task, you are given a question. You have to answer the question based on your information.

Q: Who was the youngest son of Erik Thorvaldsson?

A: Thorstein Eiriksson
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Q: The term "Five Civilized Tribes" derives from the colonial and early federal period in the history of the United States, and it refers to how many Native American nations, one being the Muscogee, also known as the Creek and the Creek Confederacy, are a closely related group of native North American tribes or Indigenous peoples of the Southeastern Woodlands?

A: five
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Q: Who was born earlier, Pavel Urysohn or Efim Zelmanov?

A:
Pavel Samuilovich Urysohn
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