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 knows ___ very well. Intent: 1) tries to take wife
Unknown

Event:PersonX starts to get better. Intent: 1) an apple
Unknown

Event:PersonX retains ___ in PersonX's knowledge. Intent: 1) to make him stop crying

Unknown