Which artist was nicknamed The Velvet Bulldozer?
{'directed': True, 'multigraph': False, 'graph': {}, 'nodes': [{'type': 'INTERNAL', 'name_': 'Q30', 'id': 0, 'label': 'United States of America'}, {'type': 'INTERNAL', 'name_': 'Q3181656', 'id': 1, 'label': 'The Nuttall Encyclopædia'}, {'type': 'QUESTIONS_ENTITY', 'name_': 'Q483501', 'id': 2, 'label': 'artist'}, {'type': 'INTERNAL', 'name_': 'Q3829349', 'id': 3, 'label': 'Ledell Eackles'}, {'type': 'ANSWER_CANDIDATE_ENTITY', 'name_': 'Q965688', 'id': 4, 'label': 'Artis Gilmore'}], 'links': [{'name_': 'P17', 'source': 0, 'target': 0, 'label': 'country'}, {'name_': 'P1343', 'source': 0, 'target': 1, 'label': 'described by source'}, {'name_': 'P1343', 'source': 2, 'target': 1, 'label': 'described by source'}, {'name_': 'P27', 'source': 3, 'target': 0, 'label': 'country of citizenship'}, {'name_': 'P1889', 'source': 3, 'target': 4, 'label': 'different from'}]}