Input (grade 12): Sophocles' first artistic triumph was in 468 BC, when he took first prize in the Dionysia theater competition over the reigning master of Athenian drama, Aeschylus.
Output (grade 11): Sophocles' first great play was in 468 BC when he took first prize in the Dionysia theater competition over the reigning master of Athenian drama, Aeschylus.