Dave is smart. Erin is rough. Fiona is round. Fiona is not smart. Fiona is white. Harry is not cold. Harry is not quiet. If something is not quiet then it is round. If something is white then it is furry. Quiet, white things are smart. If something is not round then it is cold. If something is cold and not smart then it is white. If something is round and not white then it is not quiet.
Fiona is not smart.