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. 
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Question:  "process paragraph : : A red giant star forms from an existing star. Formation occurs when the star runs out of hydrogen fuel. Hydrogen atoms are combined together to form helium atoms. Energy produced by helium fusion causes the star to expand. A red giant star is the last stage of stellar evolution. ", "event : Formation occurs when the star runs out of hydrogen fuel.", "entity : hydrogen fuel" 

Answer:  not exist 


Question:  "process paragraph : : Warm water rises off the seas. The water condenses as it cools and gets higher in the air. Then the condensation forms into clouds. The clouds travel over areas on land. The clouds reach a saturation point. The rain falls from the clouds. ", "event : The water condenses as it cools and gets higher in the air.", "entity : warm water ; water" 

Answer:  known location 


Question:  "process paragraph : : Chemical reactions in the battery causes a build up of electrons at the anode. This results in an electrical difference between the anode and the cathode. The electrons wants to rearrange themselves to get rid of this difference. The electrons go to the cathode. Electricty is created. ", "event : This results in an electrical difference between the anode and the cathode.", "entity : electricity" 

Answer:
 not exist 


