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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:
No one nice to animals is also mean to animals.
Some grumpy people are mean to animals.
All animal lovers are nice to animals.
All pet owners love animals.
Tom is a pet owner.
Here is a conclusion:
Tom is not both a grumpy person and mean to animals.
Based on the premises, is the conclusion True, False, or Uncertain?
Answer: True