[{'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: Please note that we may sell or transfer Online Data to certain third parties such as advertisers who will use this data to serve ads that they believe are relevant to your interests, and who agree to maintain the confidentiality of this information. Some of these third parties may combine the Online Data with their own data about you to form a more detailed picture."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]