Definition: 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. 
Input:  "process paragraph : : Light enters the eyes. The lens focuses light through the vitreous humor. The cornea focuses through the eye's internal lens. The retina receives the image. The retina transforms this image into electrical impulses. The impulses travel along the optic nerve to the brain. The brain decodes the impuses. ", "event : The lens focuses light through the vitreous humor.", "entity : image" 
Output:
 not exist 