This is a magic pen which you will not feel pain when writing. It will start when you press the button, then you can say what you want to write with this pen and, of course, will follow your command.
This is a pen You will not feel any pain when I wrote it to start when you press the button. After that, you can say what they want to write. And of course, this pen will follow your command.
This is the magic pen, which you will not feel pain when writing. it starts to work when you press the button. After that, you can say things like to write. And, of course, this pen will follow your orders.