Question: where does the internal carotid artery enter the skull
[{'answer': 'the carotid canal', 'provenance': [{'wikipedia_id': '519008', 'title': 'Internal carotid artery', 'start_paragraph_id': 17, 'start_character': 124, 'end_paragraph_id': 17, 'end_character': 141, 'bleu_score': 1.0, 'section': 'Section::::Course.:C1: Cervical segment.\n'}]}, {'provenance': [{'wikipedia_id': '519008', 'title': 'Internal carotid artery', 'start_paragraph_id': 19, 'start_character': 0, 'end_paragraph_id': 19, 'end_character': 228, 'bleu_score': 0.948006874591591, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 12580269415262999523}, 'section': 'Section::::Course.:C1: Cervical segment.\n'}]}]