Question: which layer of the meninges is closest to the skull bone
[{'answer': 'dura mater', 'provenance': [{'wikipedia_id': '398932', 'title': 'Meninges', 'start_paragraph_id': 1, 'start_character': 173, 'end_paragraph_id': 1, 'end_character': 183, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '398932', 'title': 'Meninges', 'start_paragraph_id': 4, 'start_character': 0, 'end_paragraph_id': 4, 'end_character': 958, 'bleu_score': 0.958116208263418, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 5393336979819846349}, 'section': 'Section::::Structure.:Dura mater.\n'}]}]