[{'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: Finally-and this is important-you should understand that users who see the content you provide can always save it using any number of techniques: screenshots, in-app functionality, or any other image-capture technology. It's also possible, as with any digital information, that someone might be able to access messages forensically or find them in a device's temporary storage. Keep in mind that, while our systems are designed to carry out our deletion practices automatically, we cannot promise that deletion will occur within a specific timeframe. And we may need to suspend those deletion practices if we receive valid legal process asking us to preserve content or if we receive reports of abuse or other Terms of Service violations. Finally, we may also retain certain information in backup for a limited period of time or as required by law."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]