[{'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: Some products may require your personal data to function properly. Wherever technically possible, we'll ask for your consent to collect your personal data and offer you the choice to opt-out. Please read product-specific information to learn how to opt-out."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]