TASK DEFINITION: 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". 
PROBLEM: Event:PersonX tickles PersonY's funny bone. Intent: 1) to shake hands

SOLUTION: Positive

PROBLEM: Event:PersonX has never heard before. Intent: 1) to be precise

SOLUTION: Unknown

PROBLEM: Event:PersonX sees PersonY's name. Intent: 1) to ease his tension.

SOLUTION:
Unknown