instruction:
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. 
question:
 "process paragraph : : Fluid. Waste enters the kidneys. A processing moment in the kidneys let waste and fluid pass. Prevents larger molecules to pass. Fluid goes back to the bloodstream. Bad waste is removed. The final product is turned into urine. ", "event : Waste enters the kidneys.", "entity : fluid" 
answer:
 known location 


question:
 "process paragraph : : A car is filled with gasoline (gas). Someone turns the car on with a key. The car's battery produces a spark (electricity). The spark ignites the gas. The burning gas expands when it encounters air. The expanding air and gas pushes a piston out. The motion of several pistons move the crankshaft. Different parts of the car cause the motion in the crankshaft to cause the wheels to move. The wheels and the car's body can move. ", "event : Someone turns the car on with a key.", "entity : car" 
answer:
 unknown location 


question:
 "process paragraph : : A plant or animal dies in mud or soil. The bones are all that remains. Over time the bones are covered in sediment. The sediment becomes rock. The rock becomes a fossil. ", "event : The bones are all that remains.", "entity : plant or animal" 
answer:

 not exist 


