[{'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: You may opt-out of Google Analytics for Display Advertisers including AdWords and opt-out of customized Google Display Network ads by visiting the Google Ads Preferences Manager. To provide website visitors more choice on how their data is collected by Google Analytics, Google has developed an Opt-out Browser add-on, which is available by visiting Google Analytics Opt-out Browser Add-on, to enable you to opt-out of Google's programs."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]