Bob is blue. Bob is cold. Bob is furry. Bob is kind. Bob is quiet. Bob is round. Bob is smart. Charlie is blue. Charlie is quiet. Charlie is round. Dave is blue. Dave is cold. If someone is smart then they are furry. All quiet, kind people are furry. All furry, blue people are cold. All quiet, blue people are smart. Blue people are cold. If someone is round then they are blue.
Dave is round.