Bob is rough. Bob is round. Bob is young. Dave is quiet. Dave is white. Erin is green. Erin is quiet. Erin is rough. Erin is round. Erin is white. Harry is blue. Harry is quiet. Harry is round. Harry is young. If Harry is green and Harry is quiet then Harry is young. Green things are quiet. Rough things are white. All round, rough things are white. If something is round then it is young. Blue things are round. If something is white then it is rough. Green things are blue. White, rough things are green.
Dave is round.