Question: where does the last name bragg originate from
[{'answer': 'Norman origin', 'provenance': [{'wikipedia_id': '13412420', 'title': 'Bragg (surname)', 'start_paragraph_id': 1, 'start_character': 31, 'end_paragraph_id': 1, 'end_character': 44, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '13412420', 'title': 'Bragg (surname)', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 44, 'bleu_score': 0.5142401605028261, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 10696230928039481505}, 'section': 'Section::::Abstract.'}]}]