Bob is big. Bob is furry. Bob is green. Bob is kind. Bob is white. Bob is young. Dave is white. If something is young then it is kind. Green things are white. If something is white then it is big. If Dave is not green then Dave is young. If something is kind then it is furry. If something is not furry then it is white. If something is green and not big then it is not young. If something is nice and not white then it is not kind.
Bob is not nice.