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 pulls the wool over PersonY's eyes. Intent: 1) yes
[EX A]: Negative

[EX Q]: Event:PersonX holds the reins. Intent: 1) to help someone incapacitated
[EX A]: Positive

[EX Q]: Event:PersonX receives a letter back. Intent: 1) to watch a different show
[EX A]:
Unknown