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 ruins PersonY's day. Intent: 1) to play a song.
Negative

Event:PersonX believes PersonX's luck. Intent: 1) to soar the skies
Unknown

Event:PersonX declares war on PersonY. Intent: 1) to spend time with someone

Negative