[{'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: In relation to the App we collect information about your usage of the service, for example what buttons you click on, and about the device you use to access the Service, for example, the device's unique device identifier, operating system, device language, device region, device time zone, device keyboards settings, push notification token and mobile network information. We collect this information for purposes of troubleshooting, in particular to improve the Service's performance and security."}, {'role': 'assistant', 'content': 'This clause is unfair. The privacy practices mentioned are: Identifier_Device_ID_1stParty.'}]