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Commercially viable natural deposits of graphite occur in many parts of the world , but the most important sources economically are in China , India , Brazil and North Korea .
 location: China; location: India; location: Brazil; location: North Korea
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 location: China; location: India; location: Brazil; location: North Korea