[{'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: We may feature advertisements served by third party advertising companies which deliver cookies to your computer or device so the advertisements you see can be tracked. These advertisers may use information about your visits to our Service in order to provide advertisements about goods and services of interest to you."}, {'role': 'assistant', 'content': 'This clause is unfair. The privacy practices mentioned are: Identifier_Cookie_or_similar_Tech_3rdParty.'}]