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It stands at the center of Jeju Island , spreading east and west. The east face is steep , the north side is gentle , and the east and west form a flat , wide highland .
 location: Jeju Island
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 location: Jeju Island