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 : : Wind or water breaks small pieces off of a rock. The wind or water deposits tiny rocks. The rocks become known as sediment. The layers of sediment are pressed together by other layers of sediment on top. Minerals from the rocks in the sediment dissolve. Minerals glue the sediment together into a single rock. ", "event : The wind or water deposits tiny rocks.", "entity : rock" 
answer:
 unknown location 


question:
 "process paragraph : : A blood clot forms in the break. Cells in the clot keep foreign objects out. Cells create a soft callous. Minerals are added to the callous. The callous hardens because of the minerals. The callous is removed by other cells. Excess bone is removed. The bone is restored to its initial shape and strength. ", "event : Cells in the clot keep foreign objects out.", "entity : blood clot" 
answer:
 known location 


question:
 "process paragraph : : Coal is burned at a furnace. The resulting heat energy is used to heat water. The heated water is turned into steam. The steam drives a generator. Electricity is produced. ", "event : The resulting heat energy is used to heat water.", "entity : coal" 
answer:

 not exist