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The route runs on the Cologne – Aachen line ( opened by the Rhenish Railway Company between Cologne and Düren in three stages between 1839 and 1841 ) , the East Rhine Railway ( opened to Troisdorf by the Rhenish Railway in 1870 , with an extension to Cologne opened in 1874 ) and the Cologne Airport loop ( opened in 2004 ) The western section of the S 13 service from Düren to Köln Messe/Deutz was opened on 15 December 2002 .
 Rhenish Railway Company, Railway, Rhenish Railway
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Rhenish Railway Company, Railway, Rhenish Railway