Question: who wrote the book tale of two cities
[{'answer': 'Charles Dickens', 'provenance': [{'wikipedia_id': '3433040', 'title': 'A Tale of Two Cities', 'start_paragraph_id': 1, 'start_character': 53, 'end_paragraph_id': 1, 'end_character': 68, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '3433040', 'title': 'A Tale of Two Cities', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 428, 'bleu_score': 0.620980081172911, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 9231704795138957093}, 'section': 'Section::::Abstract.'}]}]