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 Q]: Event:PersonX slaps leather. Intent: 1) desperate
[EX A]: Negative

[EX Q]: Event:PersonX starts a new job ___. Intent: 1) to get better 2) to be examined
[EX A]: Unknown

[EX Q]: Event:PersonX prevents ___ in patients. Intent: 1) rate
[EX A]:
Positive