What is the purpose of the outside source used in this excerpt?

How does the play resolve the conflict between conscience and law? creon acts according to the law, not the conscience of advisors, and is punished. each character chooses familial loyalty over civil obedience and is punished. the deaths of haemon and eurydice fulfill the prophecy. creon sentences antigone to death even though haemon asks him to reconsider.

Acomplex sentence contains . one subject and one verb

How does the author create a surprise ending? cite evidence from the text to support your answer.