TASK DEFINITION: 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. 
PROBLEM:  "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" 

SOLUTION:  known location 

PROBLEM:  "process paragraph : : The moon orbits the earth. The earth orbits the sun. The moon comes between the sun and the earth. The sun is totally blocked. A solar eclipse is occurring. ", "event : The earth orbits the sun.", "entity : earth" 

SOLUTION:  unknown location 

PROBLEM:  "process paragraph : : A person eats food. The person's blood sugar level rises. The pancreas receives a signal to release insulin. Insulin is released into the bloodstream. Insulin signals cells to absorb sugar. The cells absorb sugar from the bloodstream. The cells use the sugar as energy. ", "event : The person's blood sugar level rises.", "entity : Food" 

SOLUTION:
 not exist