Bob is quiet. Bob is rough. Bob is white. Bob is young. Dave is quiet. Dave is red. Dave is rough. Dave is young. Erin is green. Erin is quiet. Erin is red. Erin is rough. Erin is young. Harry is cold. Harry is green. Harry is white. If Dave is cold and Dave is green then Dave is young. White people are quiet. Rough, young people are white. If Erin is white and Erin is cold then Erin is young. If someone is young and green then they are red. White people are quiet.
Harry is not cold.