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:PersonX kills PersonY instantly. Intent: 1) to learn something new.

Ex Output:
Negative


Ex Input:
Event:PersonX loses control of PersonX's car. Intent: 1) to cheer for his team

Ex Output:
Unknown


Ex Input:
Event:PersonX lies through PersonX's teeth. Intent: 1) to give back the answer sheet back to invigilator in time

Ex Output:

Negative