Question: who wrote music for phantom of the opera
[{'answer': 'Andrew Lloyd Webber', 'provenance': [{'wikipedia_id': '308831', 'title': 'The Phantom of the Opera (1986 musical)', 'start_paragraph_id': 1, 'start_character': 52, 'end_paragraph_id': 1, 'end_character': 71, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '308831', 'title': 'The Phantom of the Opera (1986 musical)', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 457, 'bleu_score': 0.752376963902123, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 465436899590770284}, 'section': 'Section::::Abstract.'}]}]