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. 

[Q]:  "process paragraph : : The blood sugar drops in a body. Cells in the pancrease release glucagon. The liver in response turns the glucagon into glucose. And releases it into the blood. The blood sugar levels are restored. ", "event : Cells in the pancrease release glucagon.", "entity : glucagon" 
[A]:  known location 


[Q]:  "process paragraph : : The nuclei of some atoms have too few or too many neutrons. The atoms become unstable. The atoms split. In alpha decay, two protons and two neutrons are released from the atom. In beta decay, a neutron changes into a proton and an electron. The proton joins the nucleus of the atom. The electron is released. ", "event : The atoms become unstable.", "entity : atoms" 
[A]:  unknown location 


[Q]:  "process paragraph : : Fuel produces heat. Water is boiled to make steam. Steam spins turbine. Generator is turned. Makes electricity. Electricity transfers to transformers. Produces the correct voltage. ", "event : Water is boiled to make steam.", "entity : fuel" 
[A]:
 not exist