วิทยาลัยใดมีรอบ 11 ทีมและมีตำแหน่ง wr?
Which College has a Round of 11, and a Position of wr?
df = pd.DataFrame(columns=['college', 'round', 'position'])
df.loc[(df['round'] == 11) & (df['position'] == 'wr'), 'college']