[{'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: Twitter Privacy Policy Our Services instantly connect people everywhere to what's most meaningful to them. For example, any registered user of Twitter can send a Tweet, which is public by default, and can include a message of 140 characters or less and content like photos, videos, and links to other websites."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]