Question: What opera that starred William Martin was based on a play written by William Shakespeare?
Sentence (from "Shylock (play)"): It has since been produced at theatres, Shakespeare Festivals and Fringes throughout Canada and the US (including the San Diego Repertory Theatre where it was staged opposite a controversial production of "The Merchant of Venice"), was translated for a production in Denmark and has been staged twice by the original actor, Berner, in Venice.
Relevant evidence: No