Bob is cold. Bob is nice. Bob is quiet. Bob is red. Bob is round. Bob is white. Bob is young. Dave is cold. Dave is nice. Dave is quiet. Dave is red. Dave is round. Dave is white. Dave is young. All red, white people are round. If someone is quiet then they are nice. All white, nice people are quiet. White, round people are nice. If someone is round and young then they are nice. All quiet people are young.
Bob is not red.