Question: who sang the song i am a conqueror
[{'answer': 'Estelle', 'provenance': [{'wikipedia_id': '50688010', 'title': 'Conqueror (song)', 'start_paragraph_id': 1, 'start_character': 40, 'end_paragraph_id': 1, 'end_character': 47, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '50688010', 'title': 'Conqueror (song)', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 438, 'bleu_score': 0.974188104609039, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 17106206603484817273}, 'section': 'Section::::Abstract.'}]}]