[{'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: There is no accepted standard on how to respond to Do Not Track signals, and we do not respond to such signals. We use the AdChoices Icon on our website, and it may also appear on certain targeted advertisements that we (or a service provider acting on our behalf) send to you based on information about your online activities. You may click on the AdChoices icon or visit aboutads.info to receive more information about the collection and use of information about your online activities for online behavioral advertising or to learn how to opt out of having your data used for online behavioral advertising by Digital Advertising Alliance (DAA) participating companies. Canadian users can also visit youradchoices.ca. European users can also visit youronlinechoices.com to learn how to opt out of having their data used for online behavioral advertising by European Interactive Digital Advertising Alliance (EDAA) member companies."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]