Detailed Instructions: In this task, you are given a paragraph, event and an entity. The event is part of the given paragraph and it changes the state of the entity. Your task is to classify the state of the entity into three classes: 1) not exist, 2) unknown location and 3) known location. "not exist" means the entity doesn't exist in that state anymore. "unknown location" means the entity exists in that state but location is unknown. "known location" means the entity exists and location is known. 
Problem: "process paragraph : : Air is pulled into the lungs. Oxygen moves from the lungs into the bloodstream. Air is pushed through the vocal chords. A person talks. Other air is pushed out of the lungs into the environment. ", "event : Oxygen moves from the lungs into the bloodstream.", "entity : lungs" 
Solution:
 unknown location 