Dave is not furry. Dave is young. Fiona is furry. Fiona is kind. Fiona is rough. Fiona is young. Harry is furry. Harry is kind. Harry is red. Harry is rough. If Fiona is not kind then Fiona is rough. Red things are young. Red, rough things are cold. If Harry is cold and Harry is not red then Harry is not kind. All red things are blue. If Dave is red then Dave is not blue. If something is red then it is furry. If something is not cold then it is rough.
Harry is not furry.