[{'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: · Millennial Media. Their privacy policy can be found here: http://www.millennialmedia.com/privacy-policy/. Users can opt-out here: http://lp.mydas.mobi/rich/foundation/opt-out.php."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]