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 Input:
Event:It never heard. Intent:

Ex Output:
Unknown


Ex Input:
Event:PersonX also stopped. Intent: 1) help person y slake her thirst.

Ex Output:
Negative


Ex Input:
Event:PersonX quickly opened ___. Intent:

Ex Output:

Positive