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 has a crush on a girl named PersonY. Intent:
Positive

Event:PersonX keeps PersonY from going. Intent: 1) to be liked 2) to be popular
Positive

Event:PersonX climbs the walls. Intent:

Unknown