Bob is nice. Bob is smart. Bob is young. Dave is nice. Dave is smart. Dave is white. Dave is young. Erin is big. Erin is furry. Fiona is not big. Fiona is blue. Fiona is smart. If Bob is not smart then Bob is blue. All nice, white things are young. If something is young and big then it is not blue. Furry things are nice. Furry, blue things are young. If something is nice then it is white. If something is white and not blue then it is furry. If something is young and not furry then it is big.
Dave is white.