Dave is blue. Dave is cold. Dave is furry. Dave is red. Dave is round. Fiona is quiet. Fiona is round. Blue, red things are quiet. If something is furry then it is quiet. If something is quiet and round then it is blue. If something is blue then it is red. Cold, blue things are furry. If Dave is red and Dave is round then Dave is furry.
Fiona is not furry.