Question: the two most common tertiary storage media are
[{'answer': 'tape libraries', 'provenance': [{'wikipedia_id': '5300', 'title': 'Computer data storage', 'start_paragraph_id': 34, 'start_character': 584, 'end_paragraph_id': 34, 'end_character': 598, 'bleu_score': 1.0, 'section': 'Section::::Hierarchy of storage.:Tertiary storage.\n'}]}, {'answer': 'optical jukeboxes', 'provenance': [{'wikipedia_id': '5300', 'title': 'Computer data storage', 'start_paragraph_id': 34, 'start_character': 603, 'end_paragraph_id': 34, 'end_character': 620, 'bleu_score': 1.0, 'section': 'Section::::Hierarchy of storage.:Tertiary storage.\n'}]}, {'provenance': [{'wikipedia_id': '5300', 'title': 'Computer data storage', 'start_paragraph_id': 34, 'start_character': 0, 'end_paragraph_id': 34, 'end_character': 620, 'bleu_score': 0.840718615753232, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 5824542762196374289}, 'section': 'Section::::Hierarchy of storage.:Tertiary storage.\n'}]}]