Question: who wrote the phantom of the opera music
[{'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': 0.6704311751444081, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 11078940209796183761}, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '162182', 'title': 'Gaston Leroux', 'section': 'Section::::Abstract.', 'start_paragraph_id': 2, 'end_paragraph_id': 2, 'meta': {'evidence_span': ['Andrew Lloyd Webber', 'The Phantom of the Opera" ("Le Fantôme de l\'Opéra", 1910), which has been made into several film and stage productions of the same name, notably the 1925 film starring Lon Chaney, and Andrew Lloyd Webber\'s 1986 musical. His novel "The Mystery of the Yellow Room" is also one of the most famous locked-room mysteries ever.', 'In the English-speaking world, he is best known for writing the novel "The Phantom of the Opera" ("Le Fantôme de l\'Opéra", 1910), which has been made into several film and stage productions of the same name, notably the 1925 film starring Lon Chaney, and Andrew Lloyd Webber\'s 1986 musical.']}}]}, {'provenance': [{'wikipedia_id': '2115253', 'title': 'Phantom (musical)', 'section': 'Section::::Background.\n', 'start_paragraph_id': 5, 'end_paragraph_id': 5, 'meta': {'evidence_span': ['Andrew Lloyd Webber', 'This was not a big threat to Holder, Kopit and Yeston, since their musical was intended to play on Broadway. The real threat emerged through an announcement in "Variety", where an article was published concerning plans for a musical production of "The Phantom of the Opera" by Andrew Lloyd Webber.', 'The real threat emerged through an announcement in "Variety", where an article was published concerning plans for a musical production of "The Phantom of the Opera" by Andrew Lloyd Webber.']}}]}, {'provenance': [{'wikipedia_id': '308831', 'title': 'The Phantom of the Opera (1986 musical)', 'section': 'Section::::Abstract.', 'start_paragraph_id': 1, 'end_paragraph_id': 1, 'meta': {'evidence_span': ['Andrew Lloyd Webber', 'The Phantom of the Opera is a musical with music by Andrew Lloyd Webber and lyrics by Charles Hart.', 'The Phantom of the Opera is a musical with music by Andrew Lloyd Webber and lyrics by Charles Hart.']}}]}]