Question: who sang christine in the phantom of the opera movie
[{'answer': 'Emmy Rossum', 'provenance': [{'wikipedia_id': '308856', 'title': 'The Phantom of the Opera (2004 film)', 'start_paragraph_id': 1, 'start_character': 333, 'end_paragraph_id': 1, 'end_character': 344, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '308856', 'title': 'The Phantom of the Opera (2004 film)', 'start_paragraph_id': 14, 'start_character': 0, 'end_paragraph_id': 14, 'end_character': 41, 'bleu_score': 0.6147881529512641, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 16149134268453426514}, 'section': 'Section::::Cast.\n'}]}]