Bob is cold. Bob is furry. Bob is kind. Bob is quiet. Dave is blue. Dave is cold. Dave is not furry. Dave is kind. Dave is quiet. Dave is rough. Dave is white. Gary is blue. Gary is not furry. Gary is rough. Gary is white. All quiet people are kind. If Bob is furry then Bob is white. If Bob is blue then Bob is kind. Furry people are quiet. Quiet, white people are kind. If someone is not white then they are cold.
Dave is not white.