Charlie is cold. Charlie is furry. Charlie is green. Charlie is nice. Charlie is rough. Charlie is not round. Charlie is white. Dave is cold. Dave is furry. Dave is not green. Dave is nice. Dave is rough. Dave is not round. Dave is white. Fiona is white. Furry things are cold. If something is white and not rough then it is green. If something is round and not cold then it is furry.
Fiona is not furry.