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 buys a new battery. Intent: 1) use to explain in various options
Positive

Event:PersonX sets PersonY free. Intent: 1) to win the problem definitely
Positive

Event:PersonX meets PersonX's responsibilities. Intent: 1) to save him

Positive