Who has played music for longer, Tool or Pink Floyd?
{'directed': True, 'multigraph': False, 'graph': {}, 'nodes': [{'type': 'INTERNAL', 'name_': 'Q30', 'id': 0, 'label': 'United States of America'}, {'type': 'INTERNAL', 'name_': 'Q754841', 'id': 1, 'label': 'Polar Music Prize'}, {'type': 'ANSWER_CANDIDATE_ENTITY', 'name_': 'Q2306', 'id': 2, 'label': 'Pink Floyd'}, {'type': 'INTERNAL', 'name_': 'Q202714', 'id': 3, 'label': 'The Piper at the Gates of Dawn'}, {'type': 'INTERNAL', 'name_': 'Q272121', 'id': 4, 'label': 'Ænima'}, {'type': 'QUESTIONS_ENTITY', 'name_': 'Q184827', 'id': 5, 'label': 'Tool'}, {'type': 'INTERNAL', 'name_': 'Q392', 'id': 6, 'label': 'Bob Dylan'}, {'type': 'INTERNAL', 'name_': 'Q7369005', 'id': 7, 'label': 'Roskilde Festival 2006'}], 'links': [{'name_': 'P17', 'source': 0, 'target': 0, 'label': 'country'}, {'name_': 'P1346', 'source': 1, 'target': 2, 'label': 'winner'}, {'name_': 'P1346', 'source': 1, 'target': 6, 'label': 'winner'}, {'name_': 'P291', 'source': 3, 'target': 0, 'label': 'place of publication'}, {'name_': 'P175', 'source': 3, 'target': 2, 'label': 'performer'}, {'name_': 'P291', 'source': 4, 'target': 0, 'label': 'place of publication'}, {'name_': 'P175', 'source': 4, 'target': 5, 'label': 'performer'}, {'name_': 'P710', 'source': 7, 'target': 5, 'label': 'participant'}, {'name_': 'P710', 'source': 7, 'target': 6, 'label': 'participant'}]}