[{'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: What user information does Psiphon collect? From time to time Psiphon may have to record additional information in order to resolve a problem with our service. When this occurs, we will add an entry to the Privacy Bulletin describing what was recorded, how long it was kept, and why."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]