Erin is big. Erin is furry. Erin is nice. Erin is quiet. Erin is rough. Erin is round. Harry is nice. All big, nice things are rough. All round things are furry. If something is green then it is nice. If something is rough and round then it is green. Round things are quiet. If Erin is nice then Erin is rough. If something is furry and round then it is nice. All quiet, round things are rough.
Harry is not rough.