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The National Association of Railroad Passengers ( NARP ) " is the largest national membership advocacy organization for train and rail transit passengers " according to the association 's website .
 organization: Railroad Passengers
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: Railroad Passengers