[Slipphreake]

You can’t write everything, but you can write a lot of stuff. Just as long as it isn’t profane or something copyrighted like Bugs Bunny.
Some people even wrote keyboard cat and it showed up, so the database of nouns is pretty massive. Plus, they were taking notes during E3 and if someone picked something that didn’t show up, they are going to try and put it in the game.