[{'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: b. Why are data collection systems placed? i. Data Collection Systems placed by DEEZER are: Data collection systems necessary to provide the Site, the Application and our services. For example, we use data collection systems to track information relating to your registration or access to the Site, Application and services, to implement security measures and to adapt the Site or the Application to your device settings (e.g. language, operating system, etc.). These data collection systems will also enable you to access your personal account on the Site or the Application."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]