Okay, so basically my book takes place in a world where all orphans are shipped off to communal homes, sort of like orphanages, except they're all being trained to be slaves. They're taught a myriad of different skills in order to serve their future family. The problem is that none of them are called slaves, because this is in the future and humans don't want to associate themselves with what is so clearly wrong, but since this is sort of dystopian, it exists anyway. At the moment, these children are called "Girls" or "Boys" depending on the gender, distinctive from the normal words girl and boy by capitalization. However, this is just a placeholder, and I feel like this name is not only confusing, but also very uncreative because I'm absolutely horrible at coming up with things like this. Any ideas as to what they should be called?