Dave is furry. Dave is green. Dave is rough. Dave is round. Dave is white. Harry is furry. Harry is green. Harry is quiet. Harry is rough. Harry is round. Harry is smart. Harry is white. If someone is round then they are smart. Green people are quiet. If someone is white and smart then they are rough. Round, quiet people are green. If Harry is round then Harry is white. All white, green people are round.
Dave is quiet.