instruction:
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. 
question:
 "process paragraph : : Sound waves enter your outer ear. Travel through ear canal to your ear drum. Eardrum vibrates with the incoming sound. Send the vibrations to three tiny bones in your middle ear. Bones in your middle ear amplify the vibrations. Send them to your inner ear. The vibrations activate tiny hair cells in your inner ear. The hair cells release neurochemical messengers. Your auditory nerve carries the message to your brain. The brain translates the message so you can understand. ", "event : Travel through ear canal to your ear drum.", "entity : neurochemical messengers" 
answer:
 unknown location 


question:
 "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" 
answer:
 unknown location 


question:
 "process paragraph : : A tadpole is hatched. The tadpole eventually grows hind legs. The tadpole loses its tail. The tadpole becomes a frog. The frog mates with another frog to produce more offspring. A tadpole is hatched. The cycle begins again. ", "event : The tadpole eventually grows hind legs.", "entity : tadpole" 
answer:

 unknown location