แชสซีใดที่ fondmetal f1 spa ใช้หลังปี 1990
Which chassis did fondmetal f1 spa use after 1990?
df = pd.DataFrame(columns=['chassis', 'year', 'entrant'])
df[(df['year'] > '1990') & (df['entrant'] == 'fondmetal f1 spa')]['chassis']