Charlie is quiet. Charlie is smart. Fiona is not young. If Charlie is young and Charlie is not cold then Charlie is quiet. If Fiona is smart and Fiona is quiet then Fiona is not young. All young, smart things are not blue. If Fiona is white and Fiona is smart then Fiona is cold. If Fiona is smart then Fiona is round. Quiet things are not cold. If something is not quiet and not cold then it is blue. If something is not round then it is white.
Fiona is not smart.