Question: The Threepenny Opera (Die Dreigroschenoper ) is a "play with music" by Bertolt Brecht and Elisabeth Hauptmann, adapted from which of John Gay's English ballad opera in three acts, written in 1728?
{'answer': "The Beggar's Opera", 'supporting_facts': [['The Threepenny Opera', 0], ["The Beggar's Opera", 0]]}