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 keeps PersonY from going. Intent: 1) to be liked 2) to be popular
Example Output: Positive

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

Example Input: Event:PersonX kills birds with stone. Intent: 1) to (be)
Example Output:
Negative