[{'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: Customizing the Platform and personalized ads We may also use third party services using cookies or similar technologies showing you personalized ads on our behalf. Please see our Cookies Policy for how to opt-out of those."}, {'role': 'assistant', 'content': 'This clause is unfair. The privacy practices mentioned are: Identifier_Cookie_or_similar_Tech_3rdParty.'}]