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Stop generation immediately after outputing the Final Answer.

Ensure that your response strictly follows the format to maintain clarity and consistency. 
Question: Here are some premises:
Everyone who can register to vote in the United States can participate in the 2024 United States presidential election.
If someone has United States citizenship, then they can register to vote in the United States.
A person either has United States citizenship or Taiwanese citizenship.
No Russian Federation officials hold Taiwanese citizenship. 
Vladimir neither holds Taiwanese citizenship nor is he a manager at Gazprom. 
Ekaterina she can register to vote in the United States, or she is a Russian federation official.
Here is a conclusion:
Vladimir is a Russian federation official
Based on the premises, is the conclusion True, False, or Uncertain?
Answer: Uncertain