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 needs to save money. Intent:
[EX A]: Unknown

[EX Q]: Event:PersonX plays a prank. Intent:
[EX A]: Negative

[EX Q]: Event:PersonX thinks PersonY would win. Intent:
[EX A]:
Unknown