Dave is furry. Dave is smart. Erin is furry. Erin is nice. Erin is white. Erin is not young. Fiona is furry. Fiona is nice. Fiona is rough. Fiona is smart. Fiona is white. Fiona is young. Harry is furry. Harry is red. Harry is rough. Harry is white. Young things are white. Rough, red things are white. Furry things are nice. All smart things are furry. All nice things are red. If something is smart and red then it is rough. If Fiona is young and Fiona is white then Fiona is red. If something is rough and white then it is young. If something is not furry then it is not nice.
Dave is not rough.