Question: who wrote the music for land of hope and glory
[{'answer': 'Edward Elgar', 'provenance': [{'wikipedia_id': '60895', 'title': 'Land of Hope and Glory', 'start_paragraph_id': 1, 'start_character': 68, 'end_paragraph_id': 1, 'end_character': 80, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '60895', 'title': 'Land of Hope and Glory', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 124, 'bleu_score': 0.80377750806414, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 5036338510946884452}, 'section': 'Section::::Abstract.'}]}]