You are provided with an "Event" and it's "Intent" related to PersonX. Determine the sentiment value of the given input as either "Positive", "Negative", and "Unknown". 

Example Input: Event:PersonX watches PersonY's face. Intent: 1) to bring something with personx
Example Output: Unknown

Example Input: Event:PersonX chases the cat. Intent: 1) to be helpful
Example Output: Positive

Example Input: Event:PersonX keeps PersonY's promise. Intent: 1) to make sure everything is running smooth
Example Output:
Positive