การจัดประเภท Young Rider สำหรับ Jesper Worre และ Stage 3 คืออะไร
What is the young rider classification for jesper worre and stage 3
df = pd.DataFrame(columns=['young_rider_classification', 'mountains_classification', 'stage'])
df.loc[(df['mountains_classification'] == "jesper worre") & (df['stage'] == "3"), 'young_rider_classification']