[{'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: Remarketing: In addition to foregoing we may employ 3rd party remarketing services. Remarketing is a way for us to reconnect with users, based upon your past interactions with the Avast website. Third-party marketing vendors may be hired by Avast to perform remarketing services. As a result, third-party vendors, including Google, may show Avast ads on sites on the Internet. Third-party vendors, including Google, use cookies to serve ads based on a user's prior visits to Avast website. To opt out of customized Google Display Network ads visit the Ads Preferences Manager. Alternatively, you can opt out of third-party vendors' use of cookies by visiting the Network Advertising Initiative opt-out page. Any information collected is used only for remarketing purposes and will not be used by third-party marketing vendors for any other purpose."}, {'role': 'assistant', 'content': 'This clause is unfair. The privacy practices mentioned are: Identifier_Cookie_or_similar_Tech_3rdParty.'}]