ใครคือตำแหน่งเบอร์ 1 ในฤดูกาล 2552-2553?
Who is the position for the 2009-2010 season, number 1?
df = pd.DataFrame(columns=['position', 'season', 'number'])
df[(df['season'] == '2009-2010') & (df['number'] == '1')]['position']