Who wrote The True Blood series?
{'directed': True, 'multigraph': False, 'graph': {}, 'nodes': [{'type': 'INTERNAL', 'name_': 'Q666121', 'id': 0, 'label': 'The Southern Vampire Mysteries'}, {'type': 'ANSWER_CANDIDATE_ENTITY', 'name_': 'Q233566', 'id': 1, 'label': 'Charlaine Harris'}, {'type': 'QUESTIONS_ENTITY', 'name_': 'Q186219', 'id': 2, 'label': 'True Blood'}], 'links': [{'name_': 'P50', 'source': 0, 'target': 1, 'label': 'author'}, {'name_': 'P4969', 'source': 0, 'target': 2, 'label': 'derivative work'}, {'name_': 'P800', 'source': 1, 'target': 0, 'label': 'notable work'}]}