Charlie is not round. Dave is white. Erin is white. Harry is furry. If someone is young then they are round. Smart people are round. If someone is white and not quiet then they are not blue. If someone is blue and not smart then they are not young. If Erin is round and Erin is white then Erin is not blue. If someone is young and not round then they are not smart.
Dave is not blue.