He works at the Ministry of Health, Labour and Welfare.

Kurosawa is my friend.

There is a cute black cat in my house.

Kuroyanagi is my best friend.

His car is black.

Mr. Kurokawa is my friend.

He is a famous black singer in America.

The company's management ended in surplus this year.

Due to the fire, black smoke was billowing in the sky.

Black smoke was rising from the scene of the fire.