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On 1 October 2010 , Langley Field was joined with Fort Eustis to become Joint Base Langley – Eustis .
 person: Langley; person: Langley
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: Langley, Langley 
Answer:
 person: Langley; person: Langley