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 : : The cornea helps to focus light. Light passes to the iris. The pupil within the iris expands or contracts to control the amount of light entering the eye. The retina converts the light that reaches the retina into an electric signal. Sends the signal to the brain. The brain translates the electrical signals into the images a person sees. ", "event : Light passes to the iris.", "entity : electric signal" 

Output:  not exist 


Input: Consider Input:  "process paragraph : : A hurricane usually starts as an organized thunderstorm activity that stretches at least 100 miles across and maintains its identity for more than 24 hours. Under the right conditions it can develop further and start to spin around a low-pressure center. If it develops it's classified as a "tropical cyclone" or "tropical depression". If the system strengthens and wind speeds rise past 39 mph, the system is dubbed a "tropical storm". If the pressure in the center drops even further and the winds really pick up and forms a clearly defined "eye" it's a hurricane. ", "event : Under the right conditions it can develop further and start to spin around a low-pressure center.", "entity : hurricane" 

Output:  not exist 


Input: Consider Input:  "process paragraph : : The frog's egg hatches and a tadpole is born. The tadpole swims with its siblings and tries to survive. The tadpole grows larger. The tadpole loses its tail. The tadpole develops limbs. And the tadpole now becomes a frog. ", "event : The tadpole swims with its siblings and tries to survive.", "entity : frog's egg" 


Output:  not exist