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". 

[EX Q]: Event:PersonX breaks the window. Intent:
[EX A]: Unknown

[EX Q]: Event:PersonX grabs PersonY's backpack. Intent: 1) to give person y something
[EX A]: Negative

[EX Q]: Event:PersonX fires upon PersonY. Intent: 1) to find out persony's secret
[EX A]:
Negative