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. 

Ex Input:
 "process paragraph : : Air is drawn in through the mouth. The air goes down the esophagus. The air moves into the lungs. The carbon dioxide is removed. The remaining oxygen enters the body. The remaining carbon dioxide is expelled through the mouth. ", "event : The air goes down the esophagus.", "entity : air" 

Ex Output:
 known location 


Ex Input:
 "process paragraph : : Rock begins as magma from a volcano. The magma cools. Crystals form and the magma become igneous rocks. The igneous rocks break down into sediment. Become sedimentary rocks. If subjected to heat and/or pressure from plate-tectonic activity the sedimentary rocks become metamorphic rock. The metamorphic rocks melt. Become magma again. ", "event : The magma cools.", "entity : magma" 

Ex Output:
 unknown location 


Ex Input:
 "process paragraph : : A star burns in space. Eventually it burns all its hydrogen. Becomes a red giant. Once the red giant burns itself out. The core of the star collapses. The gasses will start to disperse. Only the core is left. A white dwarf has been formed. ", "event : Eventually it burns all its hydrogen.", "entity : star" 

Ex Output:

 known location