[{'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: Certain services include a unique application number. This number and information about your installation (for example, the operating system type and application version number) may be sent to us when you install or uninstall that service or when that service periodically contacts our servers, such as for automatic updates."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]