[{'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: Some of these companies may combine information they collect in connection with the Comcast Web Services with other information they have independently collected relating to your web browser's activities across their network of websites. These companies collect and use this information (which may include PII or information that can be used to contact you online) under their own privacy policies. More information about these companies, their privacy policies, and the opt-outs they offer can be found here."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]