[{'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: Opting Out of Other Communications You can opt out of receiving SMS messages (for example, text messages) by texting back STOP to the number we send the text from for that particular SMS message program. In some cases a preferences management page will also be available. When we receive an opt-out message from you for SMS messages, we may send a message confirming our receipt of your opt-out."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]