[{'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: Personal Information allows us to contact you, if we need to. It allows us to send you notifications. If you do not want to receive further notifications from us, you can opt out at any time."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]