ผู้เข้าแข่งขันคนใดหลังจากปี 1987 มี 12 คะแนนและแชสซี benetton b188
which entrant after 1987 had 12 points and a benetton b188 chassis?
df = pd.DataFrame(columns=['entrant','points','year','chassis'])
df.loc[(df['year'] > 1987) & (df['chassis'] == 'benetton b188') & (df['points'] == 12),'entrant']