Question: the last name of the royal family of england
[{'answer': 'Windsor', 'provenance': [{'wikipedia_id': '46542', 'title': 'British royal family', 'start_paragraph_id': 4, 'start_character': 186, 'end_paragraph_id': 4, 'end_character': 193, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '46542', 'title': 'British royal family', 'start_paragraph_id': 4, 'start_character': 0, 'end_paragraph_id': 4, 'end_character': 732, 'bleu_score': 0.9170114037386771, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 16528157541652958183}, 'section': 'Section::::Abstract.'}]}]