Question: usb flash drive what to use it for
[{'answer': 'storage', 'provenance': [{'wikipedia_id': '400414', 'title': 'USB flash drive', 'start_paragraph_id': 1, 'start_character': 28, 'end_paragraph_id': 1, 'end_character': 35, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'data back - up', 'provenance': [{'wikipedia_id': '400414', 'title': 'USB flash drive', 'start_paragraph_id': 2, 'start_character': 45, 'end_paragraph_id': 2, 'end_character': 61, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'transfer of computer files', 'provenance': [{'wikipedia_id': '400414', 'title': 'USB flash drive', 'start_paragraph_id': 2, 'start_character': 62, 'end_paragraph_id': 2, 'end_character': 88, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '400414', 'title': 'USB flash drive', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 646, 'bleu_score': 0.950116580121463, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 122486276238479272}, 'section': 'Section::::Abstract.'}]}]