[{'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: LINKS Metago may present links in a format that enables us to keep track of whether these links have been followed. We use this information to improve the quality of our search technology, customized content and advertising."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]