[{'role': 'user', 'content': "Analyze the following clause from a privacy policy and determine if it's fair or unfair. Also identify any privacy practices mentioned: Do you have any questions about our data policy? If you have questions or comments about our data protection policy, do not hesitate to write an E-mail to apps@tivola.de In case our data protecion policy changes, we will place a distinctly visible notification on our website www.tivola-mobile.de."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]