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 gets PersonY's irish up. Intent: 1) to keep secrets
Negative

Event:PersonX heads for the hills. Intent: 1) to listen
Negative

Event:PersonX thanks PersonY's mom. Intent: 1) to explore the world.

Positive