Charlie is blue. Erin is nice. Erin is rough. Erin is not round. Erin is white. Fiona is red. Harry is rough. If something is nice and not round then it is furry. All nice things are red. If something is furry and blue then it is white. All blue things are not round. Furry, rough things are white. If Charlie is furry then Charlie is not red. White things are blue. If Harry is not round then Harry is nice. If something is furry and blue then it is red.
Fiona is not nice.