คู่ต่อสู้คนใดในรอบชิงชนะเลิศมีคู่หูของ Olga Lugina?
Which Opponents in the final has a Partner of olga lugina?
df = pd.DataFrame(columns=['opponents_in_the_final', 'partner'])
df[df['partner'] == 'olga lugina']['opponents_in_the_final']