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". 

Event:PersonX wins the talent show. Intent: 1) to wait
Negative

Event:PersonX feels pretty bad. Intent: 1) to prevent an accident
Unknown

Event:PersonX swims back. Intent: 1) to help them

Positive