Who had a longer reign, Louis XIV or Louis XV?
{'directed': True, 'multigraph': False, 'graph': {}, 'nodes': [{'type': 'INTERNAL', 'name_': 'Q2946', 'id': 0, 'label': 'Palace of Versailles'}, {'type': 'QUESTIONS_ENTITY', 'name_': 'Q7738', 'id': 1, 'label': 'Louis XV of France'}, {'type': 'QUESTIONS_ENTITY', 'name_': 'Q7742', 'id': 2, 'label': 'Louis XIV of France'}, {'type': 'ANSWER_CANDIDATE_ENTITY', 'name_': 'Q737533', 'id': 3, 'label': 'Louis XIII of France'}], 'links': [{'name_': 'P88', 'source': 0, 'target': 2, 'label': 'commissioned by'}, {'name_': 'P112', 'source': 0, 'target': 3, 'label': 'founded by'}, {'name_': 'P19', 'source': 1, 'target': 0, 'label': 'place of birth'}, {'name_': 'P1038', 'source': 1, 'target': 2, 'label': 'relative'}, {'name_': 'P20', 'source': 2, 'target': 0, 'label': 'place of death'}, {'name_': 'P22', 'source': 2, 'target': 3, 'label': 'father'}]}