Question: how many copies has michael jackson thriller sold
[{'answer': '66 million', 'provenance': [{'wikipedia_id': '3329753', 'title': 'List of best-selling albums', 'start_paragraph_id': 4, 'start_character': 53, 'end_paragraph_id': 4, 'end_character': 63, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '3329753', 'title': 'List of best-selling albums', 'start_paragraph_id': 4, 'start_character': 0, 'end_paragraph_id': 4, 'end_character': 378, 'bleu_score': 0.8375000945843161, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 9237454092095871473}, 'section': 'Section::::Abstract.'}]}]