Charlie is not blue. Charlie is cold. Charlie is not furry. Charlie is nice. Charlie is quiet. Charlie is smart. Charlie is young. Erin is blue. Erin is not cold. Erin is furry. Erin is nice. Erin is smart. If Erin is cold and Erin is blue then Erin is not quiet. If something is not furry then it is not blue. If something is blue and quiet then it is smart.
Erin is not young.