Question: what is the top folder of the file tree called
[{'answer': 'the root directory', 'provenance': [{'wikipedia_id': '5515027', 'title': 'Directory (computing)', 'start_paragraph_id': 2, 'start_character': 529, 'end_paragraph_id': 2, 'end_character': 547, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '5515027', 'title': 'Directory (computing)', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 547, 'bleu_score': 0.9228379906439701, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 3709274424084040797}, 'section': 'Section::::Abstract.'}]}]