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