Question: when was my ding a ling number 1
[{'answer': '1972', 'provenance': [{'wikipedia_id': '1859941', 'title': 'My Ding-a-Ling', 'start_paragraph_id': 1, 'start_character': 110, 'end_paragraph_id': 1, 'end_character': 114, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '1859941', 'title': 'My Ding-a-Ling', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 491, 'bleu_score': 0.9518070571927261, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 6457675567026737040}, 'section': 'Section::::Abstract.'}]}]