Who has the most podium finishes in Formula 1?
{'directed': True, 'multigraph': False, 'graph': {}, 'nodes': [{'type': 'ANSWER_CANDIDATE_ENTITY', 'name_': 'Q9671', 'id': 0, 'label': 'Michael Schumacher'}, {'type': 'QUESTIONS_ENTITY', 'name_': 'Q1968', 'id': 1, 'label': 'Formula One'}], 'links': [{'name_': 'P2416', 'source': 0, 'target': 1, 'label': 'sports discipline competed in'}]}