Charlie is rough. Erin is not red. Erin is rough. Erin is smart. Erin is not young. Harry is round. Harry is smart. If someone is nice and green then they are young. All green, young people are not nice. If someone is young and not green then they are not round. All green, rough people are nice. All red people are rough. If someone is round and not rough then they are not nice.
Charlie is green.