Bob is blue. Bob is furry. Bob is not red. Bob is round. Dave is big. Dave is blue. Dave is smart. Fiona is big. Fiona is furry. Fiona is not red. Fiona is round. Fiona is smart. Furry things are quiet. If something is smart then it is furry. If something is not quiet then it is not furry. If something is not quiet then it is blue. If Fiona is smart and Fiona is not quiet then Fiona is round. If Dave is not furry then Dave is smart. If something is not blue and not furry then it is smart. If Bob is not blue then Bob is red.
Fiona is not big.