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 : : 300 millions years ago plants and trees died. The plant and tree remains sank to the bottom of steamy, swampy areas. Layer upon layer of remains accumulated. Eventually forming a soggy, dense material called peat. The peat was buried over millions of years by sand, clay, and other mineral material. Pressure caused by the wait of the materials squeezed water from the peat. With the heat caused by increased burial peat slowly became coal. ", "event : The plant and tree remains sank to the bottom of steamy, swampy areas.", "entity : plants; trees" 
 not exist 

 "process paragraph : : Wind and water erode rocks. The wind and water pick up sediment that came off the rocks. Sediment is carried to an area by the wind, water, air, or ice. Sediment is deposited on the same spot many times. The sediment piles on top of other sediment for a long time. The sediment near the bottom is compressed by the weight of newer sediment. The sediment becomes sedimentary rock as it is pushed together by the heavy weight. ", "event : The wind and water pick up sediment that came off the rocks.", "entity : rocks" 
 unknown location 

 "process paragraph : : Trash is put into a household trashbag. The trashbags are thrown into a large outdoor trashcan. The trashcan is emptied by a large trash truck. The trash truck travels to the landfill. Unloads all the trash the truck has collected. ", "event : The trashbags are thrown into a large outdoor trashcan.", "entity : trash" 

 known location 

