Who was the shortest-serving Supreme Court Justice?
{'directed': True, 'multigraph': False, 'graph': {}, 'nodes': [{'type': 'INTERNAL', 'name_': 'Q30', 'id': 0, 'label': 'United States of America'}, {'type': 'INTERNAL', 'name_': 'Q11698', 'id': 1, 'label': 'United States Constitution'}, {'type': 'ANSWER_CANDIDATE_ENTITY', 'name_': 'Q370781', 'id': 2, 'label': 'John Rutledge'}, {'type': 'QUESTIONS_ENTITY', 'name_': 'Q20706330', 'id': 3, 'label': 'United States Supreme Court justice'}, {'type': 'INTERNAL', 'name_': 'Q437855', 'id': 4, 'label': 'Robert H. Harrison'}], 'links': [{'name_': 'P17', 'source': 0, 'target': 0, 'label': 'country'}, {'name_': 'P92', 'source': 0, 'target': 1, 'label': 'main regulatory text'}, {'name_': 'P17', 'source': 1, 'target': 0, 'label': 'country'}, {'name_': 'P1891', 'source': 1, 'target': 2, 'label': 'signatory'}, {'name_': 'P27', 'source': 4, 'target': 0, 'label': 'country of citizenship'}, {'name_': 'P39', 'source': 4, 'target': 3, 'label': 'position held'}]}