Bob is not blue. Bob is cold. Bob is green. If Bob is blue and Bob is quiet then Bob is not cold. If something is big and not blue then it is not furry. If Bob is blue then Bob is not cold. If something is blue and quiet then it is young. If Bob is cold then Bob is big. All blue things are big. If something is not blue then it is quiet. If something is cold and not quiet then it is not green.
Bob is not quiet.