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 : : Nitrogen-fixing bacteria convert atmospheric nitrogen to organic nitrogen. Plants absorb organic nitrogen from the soil through their roots. Animals eat the plants. Plants and animals die. Animals expel wastes. Fungi convert organic nitrogen to ammonium. Nitrifying bacteria convert ammonium to nitrate. Bacteria convert nitrate to nitrogen gas. Nitrogen gas escapes from soil into the atmosphere. ", "event : Plants absorb organic nitrogen from the soil through their roots.", "entity : atmospheric nitrogen" 

Answer:  not exist 


Question:  "process paragraph : : There is a lot of rain. Water levels of a river or lake get higher. Water builds up on the ground. Water covers streets. Water goes into houses. The rain or other source of water stops. Water flows into streams. The rest of the water evaporates. ", "event : Water levels of a river or lake get higher.", "entity : rain" 

Answer:  unknown location 


Question:  "process paragraph : : Information encoded in DNA is copied to a RNA molecule. The mRNA molecule is sent to the cytoplasm. The mRNA bonds with ribosomes. TMRNA molecules bind with the ribosome in a sequence defined by the mRNA code. The ribosome slides down the mRNA. The process continues until one of the stop codons enters the A site. ", "event : The mRNA molecule is sent to the cytoplasm.", "entity : DNA" 

Answer:
 known location