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 uses PersonY form. Intent: 1) gratitude the encouragement
Example Output: Positive

Example Input: Event:PersonX has never heard before. Intent: 1) to be precise
Example Output: Unknown

Example Input: Event:PersonX forces upon PersonY. Intent: 1) to be a cautious person
Example Output:
Negative