[{'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: 6. Message Deletion Delete is our default. That means that most messages sent through our Services will be automatically deleted once they have been viewed or have expired. But -and this is important- you should understand that users who see your messages can always save them, either by taking a screenshot or by using some other image-capture technology (whether that be software or even something as old-fashioned as a camera to take a photo of your device's screen). If we're able to detect that a recipient took a screenshot of a message you sent, we'll try to notify you. But the same common sense that applies to the Internet at large applies to SNOW as well: Don't send messages that you wouldn't want someone to save or share."}, {'role': 'assistant', 'content': 'This clause is fair. The privacy practices mentioned are: nan.'}]