Calla put her hands together. "Okay, so like you think of something and everyone else, using yes or no questions only, tries to guess what it is. The categories are animal, vegetable or mineral. I'm not a fan of where people are put, because I'm not of the belief we're animals... But like celebrities, professionals and family are in that category. Vegetables is again really broad. It's any plant including trees. Mineral sort of covers most everything else. Planets, meteors, comets... Mineral. Household things like furniture and linens and what not... Mineral. Though cotton, and plant like stuff should be vegetable, and like silk or woolen things should be animal. Anyhoo, use your judgement and keep track of both the number of questions and what's already been asked." She then thought about something. "Okay, girls. I got something. Why don't you ask first, Noel, to see if you have the rules. Remember, the question has to be yes or no. So you can't ask which it is. You can pick a category and ask if it's that."