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". 

Event:PersonX feels young again. Intent: 1) nice
Unknown

Event:PersonX calls the police for help. Intent: 1) to be exactly same of other
Negative

Event:PersonX walks instead. Intent: 1) to play a game 2) a challenge

Positive