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". 

Input: Consider Input: Event:PersonX puts PersonX's head in the sand. Intent: 1) to watch something together

Output: Positive


Input: Consider Input: Event:PersonX buys a book. Intent: 1) to go

Output: Positive


Input: Consider Input: Event:PersonX calls a repairman. Intent:


Output: Negative