Question: who sang the song rub it in rub it in
[{'answer': 'Layng Martine Jr.', 'provenance': [{'wikipedia_id': '10974934', 'title': 'Rub It In', 'start_paragraph_id': 1, 'start_character': 57, 'end_paragraph_id': 1, 'end_character': 74, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '10974934', 'title': 'Rub It In', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 217, 'bleu_score': 0.8846179250781581, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 14865723240729281287}, 'section': 'Section::::Abstract.'}]}]