Which video game console has sold more units worldwide, the Nintendo Switch or Playstation 4?
{'directed': True, 'multigraph': False, 'graph': {}, 'nodes': [{'type': 'QUESTIONS_ENTITY', 'name_': 'Q5014725', 'id': 0, 'label': 'PlayStation 4'}, {'type': 'ANSWER_CANDIDATE_ENTITY', 'name_': 'Q18594', 'id': 1, 'label': 'Sony Interactive Entertainment'}, {'type': 'QUESTIONS_ENTITY', 'name_': 'Q19610114', 'id': 2, 'label': 'Nintendo Switch'}, {'type': 'INTERNAL', 'name_': 'Q15297043', 'id': 3, 'label': "No Man's Sky"}], 'links': [{'name_': 'P176', 'source': 0, 'target': 1, 'label': 'manufacturer'}, {'name_': 'P400', 'source': 3, 'target': 0, 'label': 'platform'}, {'name_': 'P123', 'source': 3, 'target': 1, 'label': 'publisher'}, {'name_': 'P400', 'source': 3, 'target': 2, 'label': 'platform'}]}