Anne is quiet. Anne is rough. Anne is smart. Charlie is quiet. Dave is furry. Dave is quiet. Fiona is cold. Fiona is not quiet. Fiona is not red. Fiona is rough. Furry people are round. Cold, smart people are round. If someone is not red then they are smart. If someone is cold then they are furry. If Charlie is cold then Charlie is not red. If someone is smart then they are furry.
Dave is not round.