โรงเรียนมัธยมต้นไหนมีนักศึกษามหาวิทยาลัยและผู้ใหญ่สูง 26 มม.?
Which junior high school has university students and adults of 26mm?
df = pd.DataFrame(columns=['junior_high_school__12_15_yrs_', 'university_students_and_adults__18yrs', '_'])
df.loc[df['university_students_and_adults__18yrs'] + df['_'] == '26mm', 'junior_high_school__12_15_yrs_']