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 volunteers PersonX's time. Intent: 1) to have a wedding.
Positive

Event:PersonX takes PersonY's place. Intent: 1) to display their vocal range
Negative

Event:PersonX wants so badly. Intent: 1) to get a signature from y

Negative

