Question: who sang the song d i s c o
[{'answer': 'Ottawan', 'provenance': [{'wikipedia_id': '6782416', 'title': 'D.I.S.C.O.', 'start_paragraph_id': 1, 'start_character': 42, 'end_paragraph_id': 1, 'end_character': 49, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '6782416', 'title': 'D.I.S.C.O.', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 148, 'bleu_score': 0.812034170285978, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2532892898359766001}, 'section': 'Section::::Abstract.'}]}]