Question: how many rooms is in the biltmore house
[{'answer': '250', 'provenance': [{'wikipedia_id': '801578', 'title': 'Biltmore Estate', 'start_paragraph_id': 21, 'start_character': 43, 'end_paragraph_id': 21, 'end_character': 46, 'bleu_score': 1.0, 'section': 'Section::::Interiors.:First floor.\n'}]}, {'provenance': [{'wikipedia_id': '801578', 'title': 'Biltmore Estate', 'start_paragraph_id': 21, 'start_character': 0, 'end_paragraph_id': 21, 'end_character': 1412, 'bleu_score': 0.6088054743712731, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 13795132908400947103}, 'section': 'Section::::Interiors.:First floor.\n'}]}]