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 tries to cheer PersonY up. Intent: 1) to vent frustrations
Example Output: Positive

Example Input: Event:It goes so well. Intent: 1) to lead a rich life
Example Output: Unknown

Example Input: Event:PersonX gains confidence. Intent: 1) to escape from work
Example Output:
Unknown