My younger brother will go to a new school for changing school.

He had to change schools because of his family's job transfer.

The sexology class is very interesting.

Sexology is the scientific study of human sexual behavior and sexuality.

I like learning instrumental music.

He is a famous kapellmeister, and has directed many orchestras.

He fractured his mandible.

Riemannian geometry is a field of mathematics that studies geometric objects such as curves and surfaces.

This shirt is made of chemical fiber.

I go to the library for learning.