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Another idea was that the CMK would merge with the Warsaw-Vienna Railway near Piastów , but this would have been too costly because of the densely populated area .
 organization: Warsaw-Vienna Railway; location: Piastów
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: Warsaw-Vienna Railway; location: Piastów