Bob is furry. Bob is kind. Bob is smart. Bob is white. Bob is young. Erin is round. Fiona is furry. Fiona is rough. Fiona is round. Gary is kind. Gary is rough. Gary is smart. All kind, rough things are furry. If Bob is furry and Bob is white then Bob is rough. If something is furry then it is round. Young things are round. If something is white and smart then it is round. Furry, round things are young. White, round things are rough. If something is young then it is kind.
Bob is not white.