[{'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: Maintenance of personally identifiable information is performed either by us or by contractors who we hire, or by our subsidiaries, affiliates, representatives, agents, or resellers who are working on our behalf. All such third parties must agree to observe the privacy of our users, and to protect the confidentiality of their personal information. All have agreed not to share personal information of our users with other parties, and not to use such personal information for their own direct marketing purposes."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]