What was the shortest battle in Desert Storm?
{'directed': True, 'multigraph': False, 'graph': {}, 'nodes': [{'type': 'QUESTIONS_ENTITY', 'name_': 'Q2349281', 'id': 0, 'label': 'Operation Desert Storm'}, {'type': 'INTERNAL', 'name_': 'Q163669', 'id': 1, 'label': '1st Marine Division'}, {'type': 'ANSWER_CANDIDATE_ENTITY', 'name_': 'Q718770', 'id': 2, 'label': 'Battle of Khafji'}], 'links': [{'name_': 'P607', 'source': 1, 'target': 0, 'label': 'conflict'}, {'name_': 'P607', 'source': 1, 'target': 2, 'label': 'conflict'}]}