Which author wrote To Kill a Mockingbird?
{'directed': True, 'multigraph': False, 'graph': {}, 'nodes': [{'type': 'INTERNAL', 'name_': 'Q30', 'id': 0, 'label': 'United States of America'}, {'type': 'ANSWER_CANDIDATE_ENTITY', 'name_': 'Q35702', 'id': 1, 'label': '1930s'}, {'type': 'INTERNAL', 'name_': 'Q6927', 'id': 2, 'label': '20th century'}, {'type': 'INTERNAL', 'name_': 'Q108366', 'id': 3, 'label': 'Gregory Peck'}, {'type': 'INTERNAL', 'name_': 'Q177922', 'id': 4, 'label': 'To Kill a Mockingbird'}, {'type': 'INTERNAL', 'name_': 'Q18199332', 'id': 5, 'label': 'Fantastic Beasts: The Secrets of Dumbledore'}, {'type': 'QUESTIONS_ENTITY', 'name_': 'Q212340', 'id': 6, 'label': 'To Kill a Mockingbird'}], 'links': [{'name_': 'P17', 'source': 0, 'target': 0, 'label': 'country'}, {'name_': 'P527', 'source': 2, 'target': 1, 'label': 'has part(s)'}, {'name_': 'P27', 'source': 3, 'target': 0, 'label': 'country of citizenship'}, {'name_': 'P2348', 'source': 3, 'target': 2, 'label': 'time period'}, {'name_': 'P495', 'source': 4, 'target': 0, 'label': 'country of origin'}, {'name_': 'P161', 'source': 4, 'target': 3, 'label': 'cast member'}, {'name_': 'P144', 'source': 4, 'target': 6, 'label': 'based on'}, {'name_': 'P495', 'source': 5, 'target': 0, 'label': 'country of origin'}, {'name_': 'P2408', 'source': 5, 'target': 1, 'label': 'set in period'}]}