Bob is blue. Bob is quiet. Charlie is young. Dave is round. Fiona is nice. Fiona is red. Fiona is young. If something is round then it is blue. If something is young then it is round. Kind, round things are nice. If something is quiet then it is round. If Fiona is nice and Fiona is quiet then Fiona is round. If Charlie is nice then Charlie is quiet. All young, blue things are kind. If Dave is young then Dave is round. If Charlie is nice and Charlie is not blue then Charlie is young.
Charlie is quiet.