TASK DEFINITION: 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". 
PROBLEM: Event:PersonX loses PersonX's identity. Intent: 1) to serve his country

SOLUTION: Unknown

PROBLEM: Event:PersonX grinds ___ for a week. Intent: 1) to be in a silent atmosphere

SOLUTION: Positive

PROBLEM: Event:PersonX takes PersonY out to lunch. Intent: 1) to have clean water

SOLUTION:
Positive