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 : : A radioisotope has unstable nuclei that does not have enough binding energy to hold the nucleus together. Radioisotopes would like to be stable isotopes so they are constantly changing to try and stabilize. In the process, they will release energy and matter from their nucleus and often transform into a new element. This process, called transmutation, is the change of one element into another as a result of changes within the nucleus. He radioactive decay and transmutation process will continue until a new element is formed that has a stable nucleus and is not radioactive. ", "event : Radioisotopes would like to be stable isotopes so they are constantly changing to try and stabilize.", "entity : Radioisotopes" 

SOLUTION:  unknown location 

PROBLEM:  "process paragraph : : You start with a glacier. Through warming or other methods a chunk is taken off the glacier. The chunk drifts into the sea. And it settles where it can remain in its state. It is considered an iceberg. ", "event : Through warming or other methods a chunk is taken off the glacier.", "entity : Glacier" 

SOLUTION:  unknown location 

PROBLEM:  "process paragraph : : You find a pen. You get a piece of paper. You write your letter. You put it in an envelope. You put the address on the front. You put a stamp on the front. You take it to the post office. ", "event : You get a piece of paper.", "entity : pen" 

SOLUTION:
 unknown location