Bob is quiet. Fiona is quiet. If Fiona is blue and Fiona is furry then Fiona is not red. Red things are quiet. If something is kind then it is quiet. If Fiona is kind then Fiona is furry. If Bob is nice and Bob is quiet then Bob is white. If Fiona is blue and Fiona is quiet then Fiona is not white. If Fiona is kind then Fiona is not white. If something is not blue and not white then it is kind.
Bob is not white.