Human: What is the best way to keep a cat from scratching the sofa? Assistant: 
The best way to keep a cat from scratching the sofa is to provide them with alternative surfaces such as scratching posts or mats that are placed in areas they can access and use. Additionally, providing your cat with plenty of interactive toys and activities will help distract them from the sofa and reduce their desire to scratch it. Finally, make sure you regularly clean the sofa and any other furniture your cat may be tempted to scratch.