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". 

[Q]: Event:PersonX finds PersonY's ___ back. Intent:
[A]: Positive


[Q]: Event:PersonX takes PersonY for granted. Intent: 1) to be successful
[A]: Unknown


[Q]: Event:PersonX sings happy birthday. Intent: 1) to keep it safe
[A]:
Positive