Which one is not written by G. B Shaw?

G.B Shaw born in Dublin, Ireland in 1856.
He is the Irish Comic dramatist, Literary Critic & Socialist protagonist.
His notable works:
- Arms and the Man
- Caesar and Cleopatra
- The Philanderer
- Major Barbara
- The Doctor's Dilemma etc.

On the other hand, Antony and Cleopatra is a tragedy written by William Shakespeare.

Source: Britannica.