[{'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: Device event information, including crash reports, request and referral URL's and system activity details (e.g. whether you encountered an error playing our games or lost Internet access)."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]