Erin is not blue. Erin is not furry. Erin is green. Erin is quiet. Erin is red. Erin is rough. Erin is round. Harry is blue. Harry is furry. Harry is green. Harry is not quiet. Harry is not red. Harry is rough. Harry is round. If something is furry and not round then it is red. If something is blue and not green then it is quiet.
Erin is red.