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The line was finally opened on 15 October 1878 by the Royal Bavarian State Railways .
 organization: Royal Bavarian State Railways
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: Royal Bavarian State Railways 
Answer:
 organization: Royal Bavarian State Railways