Anne is blue. Anne is rough. Dave is red. Erin is blue. Erin is kind. Erin is red. Erin is rough. Erin is white. Erin is young. Fiona is blue. Fiona is not furry. Fiona is white. All rough, young people are furry. All young people are blue. If someone is furry then they are white. If Dave is red then Dave is kind. All white people are rough. All kind, red people are furry. Rough, red people are young. If someone is furry and not rough then they are young.
Dave is not young.