Question: when did they start putting parental advisory stickers on cds
[{'answer': '1985', 'provenance': [{'wikipedia_id': '675789', 'title': 'Parental Advisory', 'start_paragraph_id': 1, 'start_character': 135, 'end_paragraph_id': 1, 'end_character': 139, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '675789', 'title': 'Parental Advisory', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 555, 'bleu_score': 0.713822671534393, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 11175477362376440221}, 'section': 'Section::::Abstract.'}]}]