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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:
If something is a deadly disease, then it comes with a low survival rate. 
Severe cancers are deadly diseases.
Bile duct cancer is a severe form cancer. 
All Cholangiocarcinoma is bile duct cancer.
Mild flu comes with a low survival rate.
Colorectal cancer is not both a bile duct cancer and with a low survival rate.
Here is a conclusion:
Colorectal cancer is a kind of severe cancer
Based on the premises, is the conclusion True, False, or Uncertain?
Answer: Uncertain