how do I diagram this ? These are questions about Gregg v. Georgia

3. Unlike Brennan, Stewart holds that retribution is an appropriate

purpose for a criminal justice system. In paragraph 20,

he argues, using the following propositions, that sometimes

capital punishment is appropriate as a form of retribution.

Diagram the argument below:

(1) Humans have an instinct for retribution.

(2) If people do not believe the criminal justice system will

impose upon criminals the punishments they deserve,

the seeds of anarchy are sown.

(3) Having retribution as one of the aims of the criminal

justice system promotes social stability.

(4) Some crimes are extreme affronts to humanity.

(5) Therefore, sometimes capital punishment is the only

adequate response.