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 : : A tree produces seeds. The seeds are dispersed by wind, animals, etc. The seeds reach the ground. Grow into new trees. These new trees produce seeds. The process repeats itself over and over. ", "event : The seeds are dispersed by wind, animals, etc.", "entity : Tree" 
 not exist 

 "process paragraph : : Two birds meet each other. Egg is produced after fertilziation. Mother sits on egg until it hatches. Bird Hatches. Grows up. Flee the next. Starts family. Dies. ", "event : Egg is produced after fertilziation.", "entity : egg" 
 unknown location 

 "process paragraph : : Something happens to produce a sound. The sound travels in waves. The sound waves hit an object. The object absorbs some of the sound waves. Some of the sound waves bounce off of the object. The reflected sound waves can be heard, though they have slightly different properties than the original sound. The sound continues to bounce off of things and produce echoes until it is totally absorbed or dissipated. ", "event : The sound travels in waves.", "entity : sound ; sound waves" 

 unknown location