Question: what is the name of the chair the pope sits on
[{'answer': 'Papal Cathedra', 'provenance': [{'wikipedia_id': '2275615', 'title': 'Chair of Saint Peter', 'start_paragraph_id': 3, 'start_character': 275, 'end_paragraph_id': 3, 'end_character': 289, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '2275615', 'title': 'Chair of Saint Peter', 'start_paragraph_id': 3, 'start_character': 0, 'end_paragraph_id': 3, 'end_character': 386, 'bleu_score': 0.970362113628587, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 8785169174550792361}, 'section': 'Section::::Abstract.'}]}]