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 plays a prank. Intent:
Negative

Event:PersonX sees the ocean. Intent: 1) to be nice
Positive

Event:PersonX hurts PersonY much. Intent: 1) to inflict damage to himself/herself as a result of depression or suicidal tendency.

Negative