Who won the last Rookie of the Year award for the Seattle SuperSonics?
{'directed': True, 'multigraph': False, 'graph': {}, 'nodes': [{'type': 'INTERNAL', 'name_': 'Q5372', 'id': 0, 'label': 'basketball'}, {'type': 'QUESTIONS_ENTITY', 'name_': 'Q644357', 'id': 1, 'label': 'NBA Rookie of the Year Award'}, {'type': 'INTERNAL', 'name_': 'Q520623', 'id': 2, 'label': 'EuroBasket 2003'}, {'type': 'INTERNAL', 'name_': 'Q1501719', 'id': 3, 'label': 'J. Walter Kennedy Citizenship Award'}, {'type': 'QUESTIONS_ENTITY', 'name_': 'Q235326', 'id': 4, 'label': 'Seattle SuperSonics'}, {'type': 'INTERNAL', 'name_': 'Q456776', 'id': 5, 'label': 'Wes Unseld'}, {'type': 'ANSWER_CANDIDATE_ENTITY', 'name_': 'Q193052', 'id': 6, 'label': 'Pau Gasol'}], 'links': [{'name_': 'P641', 'source': 2, 'target': 0, 'label': 'sport'}, {'name_': 'P3279', 'source': 2, 'target': 6, 'label': 'statistical leader'}, {'name_': 'P641', 'source': 3, 'target': 0, 'label': 'sport'}, {'name_': 'P1346', 'source': 3, 'target': 5, 'label': 'winner'}, {'name_': 'P1346', 'source': 3, 'target': 6, 'label': 'winner'}, {'name_': 'P641', 'source': 4, 'target': 0, 'label': 'sport'}, {'name_': 'P641', 'source': 5, 'target': 0, 'label': 'sport'}, {'name_': 'P166', 'source': 5, 'target': 1, 'label': 'award received'}, {'name_': 'P166', 'source': 5, 'target': 3, 'label': 'award received'}]}