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 knows PersonY's ___ thoroughly. Intent: 1) to grab something
Positive

Event:PersonX moves PersonY's arm. Intent: 1) to pay someone back
Unknown

Event:PersonX gives PersonY the old heave-ho. Intent: 1) to be mean 2) to hurt another

Negative