Gordon Johncock ใช้แชสซีอะไรกับเครื่องยนต์ cosworth ของเขา
What chassis did Gordon Johncock use with his cosworth engine?
df = pd.DataFrame(columns=['chassis', 'engine', 'drivers'])
df.loc[(df['engine'] == 'cosworth') & (df['drivers'] == 'gordon johncock'), 'chassis']