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 : : Baby rabbits are born alive. Rabbits are (only occasionally) nursed by their mothers. Many of the babies do not survive. Larger and stronger rabbit do manage to survive. Rabbits quickly become able to have babies of their own. The rabbit lifecycle continues. The amount of rabbits stays reasonable because of predators and low survival rates for their young. ", "event : Rabbits are (only occasionally) nursed by their mothers.", "entity : rabbits" 

SOLUTION:  unknown location 

PROBLEM:  "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" 

SOLUTION:  unknown location 

PROBLEM:  "process paragraph : : Chemical reactions in the battery causes a build up of electrons at the anode. This results in an electrical difference between the anode and the cathode. The electrons wants to rearrange themselves to get rid of this difference. The electrons go to the cathode. Electricty is created. ", "event : This results in an electrical difference between the anode and the cathode.", "entity : electricity" 

SOLUTION:
 not exist