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 chews the scenery. Intent: 1) to be helpful
Negative

Event:PersonX changes PersonY's attitudes. Intent: 1) there to be juctice
Positive

Event:PersonX eats PersonY's sandwich. Intent: 1) to help his friend. 2) his friend to be neat.

Negative