Epidemiology is the science that studies the occurrence and spread of diseases.

I am majoring in political science at university.

I am majoring in physiology at university.

He likes going to chamber music concerts.

He is in the third year of junior high school, or in other words, he is in the 9th grade in school years.

He has a deep interest in numismatics.

My university is in Tokyo.

My high school has very strict rules.

My younger brother is learning cooking at a vocational school.

My sister is attending a boarding school.