Question: What works based loosely on characters from the Norse sagas and the "Nibelungenlied" were first organized into a studio recording by John Royds Culshaw OBE
{'answer': 'Der Ring des Nibelungen', 'supporting_facts': [['John Culshaw', 0], ['John Culshaw', 1], ['Der Ring des Nibelungen', 0], ['Der Ring des Nibelungen', 1]]}