[{'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: 3. How is Personal Information used and shared? We don't require Personal Information to access our Services. However, if you prefer not to disclose Personal Information, to the extent permitted by applicable law, you will not be able to register and/or enjoy certain features of our Services. We use Personal Information we collect through the Services for the purposes described in this Policy."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]