Question: what is the lining of the mouth called
[{'answer': 'oral mucosa', 'provenance': [{'wikipedia_id': '2949866', 'title': 'Oral mucosa', 'start_paragraph_id': 1, 'start_character': 4, 'end_paragraph_id': 1, 'end_character': 15, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '2949866', 'title': 'Oral mucosa', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 523, 'bleu_score': 0.976043556018343, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 7956690830403470921}, 'section': 'Section::::Abstract.'}]}]