Dave is furry. Dave is green. Dave is nice. Dave is rough. Dave is white. Erin is furry. Erin is green. Erin is rough. Erin is round. Erin is white. Harry is furry. Harry is nice. Harry is rough. Harry is round. Harry is smart. If Erin is round then Erin is rough. If something is round and nice then it is smart. If Dave is green and Dave is furry then Dave is round. If Dave is furry and Dave is nice then Dave is green. If something is furry and white then it is smart. If something is white and furry then it is rough.
Dave is rough.