278124
Named by Advisory Committee on Antarctic Names ( US-ACAN ) for Captain Clarence R. Gillett , USCG , who served on the USCGC operations , December 1966 to May 1970 .
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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:  
Answer:
 None