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 enters the contest. Intent: 1) to find the lost object 2) to know the answer
Example Output: Positive

Example Input: Event:PersonX changes PersonY's attitudes. Intent: 1) there to be juctice
Example Output: Positive

Example Input: Event:It is PersonX's favorite season. Intent: 1) to be liked
Example Output:
Unknown