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 cooks for PersonX's friends. Intent: 1) to find themselves
[EX A]: Unknown

[EX Q]: Event:PersonX plays ball. Intent: 1) to make happy
[EX A]: Positive

[EX Q]: Event:PersonX purchases one. Intent: 1) to be evil
[EX A]:
Positive