Dave is cold. Dave is quiet. Dave is white. Erin is quiet. Fiona is quiet. Harry is cold. Harry is rough. If Dave is round and Dave is cold then Dave is not quiet. If something is not white then it is quiet. All quiet, nice things are cold. Round, rough things are red. If something is not round then it is nice. Red, white things are rough. If something is not nice and not round then it is cold. If something is cold and not quiet then it is not white.
Fiona is white.