Anne is green. Anne is quiet. Anne is red. Anne is rough. Dave is blue. Dave is green. Dave is red. Dave is rough. Dave is round. Dave is white. Fiona is green. Harry is blue. Harry is red. Harry is rough. Harry is round. If Dave is rough and Dave is quiet then Dave is white. Blue, rough things are quiet. All green, quiet things are white. If something is red then it is rough. All green, white things are quiet. All red things are quiet.
Fiona is not round.