Dave is blue. Dave is not quiet. Dave is red. Dave is smart. Dave is white. Fiona is blue. Fiona is nice. Fiona is quiet. Fiona is red. Fiona is round. Fiona is not smart. Fiona is not white. If Dave is red and Dave is blue then Dave is not quiet. If someone is white and blue then they are nice. White, quiet people are red. If Fiona is quiet and Fiona is blue then Fiona is round. If someone is white then they are not round. If someone is not blue then they are white. If someone is not nice then they are red. If someone is not red then they are quiet.
Dave is nice.