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". 

[EX Q]: Event:PersonX supplies PersonY with food. Intent: 1) to think of themself
[EX A]: Positive

[EX Q]: Event:PersonX sees ___ in the trash. Intent:
[EX A]: Unknown

[EX Q]: Event:PersonX buys ___ at the price. Intent: 1) to move out from his parent's home.
[EX A]:
Negative