Question: this artist is credited with popularizing skiffle in britain
[{'answer': 'Lonnie Donegan', 'provenance': [{'wikipedia_id': '143390', 'title': 'Skiffle', 'start_paragraph_id': 1, 'start_character': 341, 'end_paragraph_id': 1, 'end_character': 355, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '143390', 'title': 'Skiffle', 'start_paragraph_id': 7, 'start_character': 8, 'end_paragraph_id': 7, 'end_character': 1082, 'bleu_score': 0.8709031470701121, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 7520134206929739934}, 'section': 'Section::::Revival in the United Kingdom.\n'}]}]