Dave is green. Dave is kind. Dave is red. Fiona is not green. Fiona is not quiet. Fiona is not smart. Harry is not red. If Harry is quiet then Harry is not red. If Harry is not white and Harry is not smart then Harry is green. Green things are quiet. Smart, green things are not red. If Fiona is nice and Fiona is not quiet then Fiona is smart. If Harry is not smart and Harry is not quiet then Harry is not kind.
Harry is not smart.