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 waits eagerly. Intent: 1) to go away 2) vacation
[EX A]: Unknown

[EX Q]: Event:PersonX has to buy another one. Intent: 1) to talk 2) to understand
[EX A]: Positive

[EX Q]: Event:PersonX unbuttons PersonY's pants. Intent: 1) to help someone learn 2) to teach
[EX A]:
Positive