Who is the most prolific author of all time?
{'directed': True, 'multigraph': False, 'graph': {}, 'nodes': [{'type': 'QUESTIONS_ENTITY', 'name_': 'Q36180', 'id': 0, 'label': 'writer'}, {'type': 'ANSWER_CANDIDATE_ENTITY', 'name_': 'Q216896', 'id': 1, 'label': 'L. Ron Hubbard'}, {'type': 'INTERNAL', 'name_': 'Q7364795', 'id': 2, 'label': 'Ronald DeWolf'}], 'links': [{'name_': 'P106', 'source': 2, 'target': 0, 'label': 'occupation'}, {'name_': 'P22', 'source': 2, 'target': 1, 'label': 'father'}]}