Question: who was boz and what did he write about
[{'answer': 'Charles Dickens', 'provenance': [{'wikipedia_id': '365027', 'title': 'Sketches by Boz', 'start_paragraph_id': 1, 'start_character': 139, 'end_paragraph_id': 1, 'end_character': 154, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]