Bob is green. Charlie is green. Charlie is quiet. Charlie is rough. Charlie is young. Dave is quiet. Dave is young. Erin is green. Erin is quiet. Erin is round. If something is round then it is rough. All rough things are quiet. If something is quiet and round then it is young. If Bob is furry then Bob is round. If something is green then it is furry. If something is rough and young then it is quiet. If something is not young then it is round. If something is not round then it is quiet. If Erin is not green and Erin is not quiet then Erin is rough.
Erin is furry.