Pentathlon is a competition that tests both physical strength and technique.

He participated in the Olympics as a pentathlon athlete.

She went to the dermatologist to remove the milium.

This is my favorite hiryūshu.

There are many introduced species of plants living in this park.

The history of the Empire of Japan is very interesting.

The Empire of Japan, written as 大日本帝國 in Kyūjitai, was a nation that existed from 1868 to 1945.

The Imperial Japanese Army was a Japanese military force that existed from the Meiji era to the Showa era.

The Imperial Japanese Navy was once the navy of Japan.

The Japanese Society for Rights of Authors, Composers and Publishers is an organization that protects the copyrights of musicians.