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: Consider Input:  "process paragraph : : Algae and plankton die. The dead algae and plankton end up part of sediment on a seafloor. The sediment breaks down. The bottom layers of sediment become compacted by pressure. Higher pressure causes the sediment to heat up. The heat causes chemical processes. The material becomes a liquid. Is known as oil. Oil moves up through rock. ", "event : The dead algae and plankton end up part of sediment on a seafloor.", "entity : algae" 

Output:  not exist 


Input: Consider Input:  "process paragraph : : Thunderstorms form over the ocean. An area of low pressure causes rotation. Several thunderstorms come together around this area. The storm is fed by rising air from warm ocean water evaporating. When the wind speeds reach 74 mph the storm is considered a hurricane. ", "event : An area of low pressure causes rotation.", "entity : thunderstorms; storm" 

Output:  known location 


Input: Consider Input:  "process paragraph : : Grass and small plants grow in an area. These plants die. The soil gains organic material. The soil becomes more fertile. Larger plants are able to be supported. Trees eventually grow. ", "event : These plants die.", "entity : Grass" 


Output:  not exist