[{'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 addition to the information that you may proactively provide or voluntarily disclose, your mere use of the AccuWeather Sites may result in the assignment of unique identifying numbers and/or codes which may be used to allow AccuWeather and its Providers and others who assist AccuWeather in the support of the AccuWeather Sites and the products and services offered on the AccuWeather Sites, including advertisers, to track a user's web browsing movements across the internet and not just on the AccuWeather sites. This type of information is considered User Data (as defined below). By using the AccuWeather Sites, you acknowledge and consent to such activity."}, {'role': 'assistant', 'content': 'This clause is unfair. The privacy practices mentioned are: Identifier_1stParty, Identifier_3rdParty.'}]