Question: when was sing something simple on the radio
[{'answer': 'from 1959 until 2001', 'provenance': [{'wikipedia_id': '18865949', 'title': 'Sing Something Simple', 'start_paragraph_id': 1, 'start_character': 173, 'end_paragraph_id': 1, 'end_character': 193, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '18865949', 'title': 'Sing Something Simple', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 345, 'bleu_score': 0.9663744727315161, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 3485848217746904611}, 'section': 'Section::::Abstract.'}]}]