How many kingdoms still exist in Europe?
{'directed': True, 'multigraph': False, 'graph': {}, 'nodes': [{'type': 'INTERNAL', 'name_': 'Q145', 'id': 0, 'label': 'United Kingdom'}, {'type': 'QUESTIONS_ENTITY', 'name_': 'Q46', 'id': 1, 'label': 'Europe'}, {'type': 'INTERNAL', 'name_': 'Q20970432', 'id': 2, 'label': '4:3'}, {'type': 'ANSWER_CANDIDATE_ENTITY', 'name_': 'Q202', 'id': 3, 'label': '4'}, {'type': 'INTERNAL', 'name_': 'Q19559892', 'id': 4, 'label': '4mat'}, {'type': 'INTERNAL', 'name_': 'Q654439', 'id': 5, 'label': 'The Merry Widow'}], 'links': [{'name_': 'P17', 'source': 0, 'target': 0, 'label': 'country'}, {'name_': 'P30', 'source': 0, 'target': 1, 'label': 'continent'}, {'name_': 'P4934', 'source': 2, 'target': 3, 'label': 'calculated from'}, {'name_': 'P27', 'source': 4, 'target': 0, 'label': 'country of citizenship'}, {'name_': 'P138', 'source': 4, 'target': 3, 'label': 'named after'}, {'name_': 'P840', 'source': 5, 'target': 1, 'label': 'narrative location'}, {'name_': 'P2061', 'source': 5, 'target': 2, 'label': 'aspect ratio (W:H)'}]}