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 gives PersonY nothing. Intent: 1) to be powerful
Negative

Event:PersonX rubs PersonX's chin. Intent: 1) solve a problem
Positive

Event:PersonX smells delicious. Intent:

Positive