Question: who sang the power of love before celine dion
[{'answer': 'Jennifer Rush', 'provenance': [{'wikipedia_id': '5566884', 'title': 'The Power of Love (Jennifer Rush song)', 'start_paragraph_id': 0, 'start_character': 19, 'end_paragraph_id': 0, 'end_character': 32, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '5566884', 'title': 'The Power of Love (Jennifer Rush song)', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 189, 'bleu_score': 0.716921055632185, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 12064889462661953437}, 'section': 'Section::::Abstract.'}]}]