I heard a partridge chirping in the forest.

I have visited the Mount of Olives.

It is important to learn about the prevention and treatment of the human immunodeficiency virus.

The human immunodeficiency virus destroys the immune system, making the body unable to fight disease.

Kenji is my best friend.

Akishi is my best friend.

Yoshi is my best friend.

He is a famous licensed architect who has designed many wonderful buildings.

He is known as a French musketeer.

My younger sister is working as a childcare worker.