Question: who owns the biltmore estate in north carolina
[{'answer': "George Vanderbilt 's descendants", 'provenance': [{'wikipedia_id': '801578', 'title': 'Biltmore Estate', 'start_paragraph_id': 1, 'start_character': 362, 'end_paragraph_id': 1, 'end_character': 394, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '801578', 'title': 'Biltmore Estate', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 454, 'bleu_score': 0.5876538797245581, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 6051468755569371008}, 'section': 'Section::::Abstract.'}]}]