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As a consequence the DPD was founded on March 17 , 1947 at a conference in Rothenburg ob der Tauber , attended by liberal politicians from all four zones .
 Rothenburg ob der Tauber
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Rothenburg ob der Tauber