[{'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: Verizon recognizes that online service providers must be vigilant in protecting the safety and privacy of children online. We do not knowingly market to or solicit information from children under the age of 13 without obtaining verifiable parental consent."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]