[{'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: Age The Service is not directed to children under the age of thirteen (13) and we do not knowingly collect personally identifiable information from children under the age of thirteen as part of the Service. If we become aware that we have inadvertently received personally identifiable information from a user under the age of thirteen as part of the Service, we will delete such information from our records. If we change our practices in the future, we will obtain prior, verifiable parental consent before collecting any personally identifiable information from children under the age of thirteen as part of the Service."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]