Dave is blue. Dave is furry. Dave is green. Dave is not quiet. Dave is red. Dave is not round. Dave is white. Erin is blue. Erin is furry. Erin is green. Erin is quiet. Erin is red. Erin is not round. Erin is white. If something is not white then it is round. If something is blue and not green then it is quiet. If something is furry and not green then it is red. If something is red and not white then it is round. If something is red and not blue then it is quiet. If something is not red then it is quiet.
Erin is not green.