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 : : A seed or seeds planted into the ground. The seed becomes a seedling and grows with water. The sun. The seedling grows into a mature plant. Becomes a flower. ", "event : The seed becomes a seedling and grows with water.", "entity : seed ; seeds" 

Answer:  not exist 


Question:  "process paragraph : : A photovoltaic cell is created with two layers of semiconductor material. The top layer are "doped" with impurities to allow a negative charge. The bottom layer are "doped" to allow for a positive charge. This produces an electric field that allows electrons to flow from negative to positve. Sunlight enters the cell. Energy from sunlight knocks electrons loose in both fields. This prevents the flow of electrons from negative to positive. Adding an external circuit allows the exchange to continue. Give the cells owner a flow of electricity. ", "event : The top layer are "doped" with impurities to allow a negative charge.", "entity : photovoltaic cell" 

Answer:  unknown location 


Question:  "process paragraph : : Get some seeds. Pick a spot to plant them. Dig a hole in the dirt. Put the seed in the hole. Pour some water on the seed and hole. Cover up the hole. Press down on it. Spray some plant food on it. ", "event : Pick a spot to plant them.", "entity : seed" 

Answer:
 unknown location