ประเทศใดมี r3 ที่ 72 โดย Larry Mize
What country had a r3 at 72, by Larry Mize?
df = pd.DataFrame(columns=['country', 'r3', 'player'])
df.loc[(df['r3'] == 72) & (df['player'] == 'Larry Mize'), 'country'].values[0]