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. 

 "process paragraph : : Carbon dioxide enters the leaf through the stomates. Water is absorbed by the plant and transported to the leaves. Sunlight is captured by the plant. Energy in the form of ATP is made from the sun's energy. Carbon dioxide, water, and ATP form sugars via the Calvin cycle. Oxygen is given off as a byproduct. Oxygen leaves the leaf through the stomates. Water is reused or it leaves the leaf. The sugars can be used by the plant to make cellulose. ", "event : Water is absorbed by the plant and transported to the leaves.", "entity : atp" 
 not exist 

 "process paragraph : : Hydrogen atoms in a star combine together to form helium atoms. All of the hydrogen in a star turns into helium. The star begins to collapse. Helium atoms combine together to form carbon atoms. The star gets much bigger than it was before. The star is now a red giant. ", "event : All of the hydrogen in a star turns into helium.", "entity : hydrogen atoms" 
 not exist 

 "process paragraph : : Blood filled with waste flows into the kidneys. The kidneys are made up of filtering units called nephrons. The nephrons in the kidneys filter the blood. Produce urine. The urine leaves the kidneys. The cleaned blood goes back into the body. ", "event : The kidneys are made up of filtering units called nephrons.", "entity : blood" 

 known location