Question: who sings belles part in beauty and the beast
[{'answer': 'Emma Watson', 'provenance': [{'wikipedia_id': '52926144', 'title': 'Beauty and the Beast (2017 soundtrack)', 'start_paragraph_id': 2, 'start_character': 75, 'end_paragraph_id': 2, 'end_character': 86, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]