Question: who wrote the book a tree grows in brooklyn
[{'answer': 'Betty Smith', 'provenance': [{'wikipedia_id': '1364178', 'title': 'A Tree Grows in Brooklyn (novel)', 'start_paragraph_id': 1, 'start_character': 74, 'end_paragraph_id': 1, 'end_character': 85, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '1364178', 'title': 'A Tree Grows in Brooklyn (novel)', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 269, 'bleu_score': 0.6741701681939191, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 8353563318033624534}, 'section': 'Section::::Abstract.'}]}]