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Permissive Working on the UK railway allows more than one train at a time to be on the same line in a : The areas where Permissive Working is allowed is given in Table A of the Network Rail Sectional Appendix .
 organization: Network Rail
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 organization: Network Rail