Question: who sang i dreamed a dream on britain's got talent
[{'answer': 'Susan Magdalane Boyle', 'provenance': [{'wikipedia_id': '22378444', 'title': 'Susan Boyle', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 21, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]