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 tries even harder. Intent:
[EX A]: Negative

[EX Q]: Event:PersonX loses touch. Intent: 1) to go down on person
[EX A]: Negative

[EX Q]: Event:It never let. Intent:
[EX A]:
Unknown