Who is the main character in Metamorphosis by Franz Kafka?
{'directed': True, 'multigraph': False, 'graph': {}, 'nodes': [{'type': 'INTERNAL', 'name_': 'Q6173448', 'id': 0, 'label': 'Wikipedia:Vital articles/Level/4'}, {'type': 'INTERNAL', 'name_': 'Q6581097', 'id': 1, 'label': 'male'}, {'type': 'INTERNAL', 'name_': 'Q85554', 'id': 2, 'label': 'Hans Günther Adler'}, {'type': 'ANSWER_CANDIDATE_ENTITY', 'name_': 'Q102398072', 'id': 3, 'label': 'College of Philosophy of the Prague German University'}, {'type': 'INTERNAL', 'name_': 'Q184742', 'id': 4, 'label': 'Metamorphoses'}, {'type': 'QUESTIONS_ENTITY', 'name_': 'Q184222', 'id': 5, 'label': 'The Metamorphosis'}, {'type': 'QUESTIONS_ENTITY', 'name_': 'Q905', 'id': 6, 'label': 'Franz Kafka'}, {'type': 'INTERNAL', 'name_': 'Q156201', 'id': 7, 'label': 'Roman Jakobson'}, {'type': 'INTERNAL', 'name_': 'Q3566632', 'id': 8, 'label': 'Gregor Samsa'}, {'type': 'INTERNAL', 'name_': 'Q78891', 'id': 9, 'label': 'Hugo Bergmann'}], 'links': [{'name_': 'P21', 'source': 2, 'target': 1, 'label': 'sex or gender'}, {'name_': 'P69', 'source': 2, 'target': 3, 'label': 'educated at'}, {'name_': 'P5008', 'source': 4, 'target': 0, 'label': 'on focus list of Wikimedia project'}, {'name_': 'P1889', 'source': 4, 'target': 5, 'label': 'different from'}, {'name_': 'P5008', 'source': 7, 'target': 0, 'label': 'on focus list of Wikimedia project'}, {'name_': 'P21', 'source': 7, 'target': 1, 'label': 'sex or gender'}, {'name_': 'P69', 'source': 7, 'target': 3, 'label': 'educated at'}, {'name_': 'P21', 'source': 8, 'target': 1, 'label': 'sex or gender'}, {'name_': 'P1441', 'source': 8, 'target': 5, 'label': 'present in work'}, {'name_': 'P170', 'source': 8, 'target': 6, 'label': 'creator'}, {'name_': 'P21', 'source': 9, 'target': 1, 'label': 'sex or gender'}, {'name_': 'P69', 'source': 9, 'target': 3, 'label': 'educated at'}, {'name_': 'P737', 'source': 9, 'target': 6, 'label': 'influenced by'}]}