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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:
International students in the US have either an F1 visa or a J1 visa.
An international student in the US with an F1 visa needs to apply for CPT or OPT if the student wants to work in the US.
Mike is an international student.
Mike needs to apply for CPT if he wants to work in the US.
Here is a conclusion:
Mike has an F1 visa.
Based on the premises, is the conclusion True, False, or Uncertain?
Answer: Uncertain