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". 

Example Input: Event:PersonX is a substitute teacher. Intent: 1) to prevent a view 2) to hide something
Example Output: Unknown

Example Input: Event:PersonX leaves the ___ without permission. Intent: 1) because x need something till to get
Example Output: Negative

Example Input: Event:PersonX goes hiking in the mountains. Intent:
Example Output:
Positive