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North of Horns Bridge , however , it has been dualled and re-routed to follow the alignment of the GCR Chesterfield Loop through the town , including opening out the former railway tunnel .
 organization: GCR Chesterfield
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: GCR Chesterfield 
Answer:
 organization: GCR Chesterfield