[{'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: Modification of Privacy Policy We may periodically update and modify our privacy policy to reflect changes in the types of information we collect, the means we use to collect information, and/or our usage of collected information. We will attempt to notify you of any such update or modification. However, you are responsible for periodically reviewing our Privacy Policy. Your use of the Site and/or any products or services offered by Site signifies your assent to the updated or modified Privacy Policy."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]