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 sells PersonX's old car. Intent: 1) to have one
Example Output: Positive

Example Input: Event:PersonX gets bad grades. Intent:
Example Output: Unknown

Example Input: Event:PersonX tells PersonY stories. Intent:
Example Output:
Positive