Question: who sings in the arms of an angel
[{'answer': 'Sarah McLachlan', 'provenance': [{'wikipedia_id': '2497333', 'title': 'Angel (Sarah McLachlan song)', 'start_paragraph_id': 0, 'start_character': 7, 'end_paragraph_id': 0, 'end_character': 22, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '2497333', 'title': 'Angel (Sarah McLachlan song)', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 372, 'bleu_score': 0.9669306597086381, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 10012622801704644071}, 'section': 'Section::::Abstract.'}]}]