Charlie is not blue. Erin is not furry. Harry is round. All red people are not quiet. If someone is nice and not smart then they are furry. If Charlie is furry and Charlie is not quiet then Charlie is red. If someone is round then they are not nice. If someone is quiet then they are not furry. If someone is blue and not smart then they are round. If Charlie is blue then Charlie is nice. All round people are not blue.
Erin is smart.