Anne is not red. Bob is cold. Dave is quiet. Dave is rough. Dave is white. Dave is not young. Fiona is not quiet. All rough, green people are young. If someone is not white then they are rough. If someone is white and not green then they are rough. If Fiona is quiet and Fiona is white then Fiona is cold. If someone is rough and red then they are not quiet. Cold, rough people are red. All cold people are not white. If someone is not white and not red then they are young.
Bob is red.