Which book is first in the Hobbit series was released in 1937?
{'directed': True, 'multigraph': False, 'graph': {}, 'nodes': [{'type': 'INTERNAL', 'name_': 'Q81738', 'id': 0, 'label': "Tolkien's legendarium"}, {'type': 'QUESTIONS_ENTITY', 'name_': 'Q74287', 'id': 1, 'label': 'The Hobbit'}, {'type': 'INTERNAL', 'name_': 'Q3776797', 'id': 2, 'label': 'Grimbeorn'}, {'type': 'ANSWER_CANDIDATE_ENTITY', 'name_': 'Q1750830', 'id': 3, 'label': 'Beorn'}], 'links': [{'name_': 'P1445', 'source': 0, 'target': 1, 'label': 'fictional universe described in'}, {'name_': 'P1080', 'source': 2, 'target': 0, 'label': 'from narrative universe'}, {'name_': 'P22', 'source': 2, 'target': 3, 'label': 'father'}]}