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The mountain is easily viewed from Shackleton Glacier or the Ross Ice Shelf .
 location: Shackleton Glacier; location: Ross Ice Shelf
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities: Shackleton Glacier, Ross Ice Shelf 
Answer:
 location: Shackleton Glacier; location: Ross Ice Shelf