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Governing Mayor Dieter Reiter cited lack of compatibility with systems outside of the administrative sector , such as requiring a governmental mail server to send e-mails to his personal smartphone , as reasons for the return , but has been criticised for evaluating administrative IT based on private and business standards .
 Dieter Reiter
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 Dieter Reiter