Question: who sang the song when i ruled the world
[{'answer': 'Coldplay', 'provenance': [{'wikipedia_id': '17319095', 'title': 'Viva la Vida', 'start_paragraph_id': 1, 'start_character': 53, 'end_paragraph_id': 1, 'end_character': 61, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '17319095', 'title': 'Viva la Vida', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 308, 'bleu_score': 0.6007594790125791, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 11808062069898611013}, 'section': 'Section::::Abstract.'}]}]