He is studying the history of African Americans.

Human trafficking is a serious problem worldwide.

Tokyo is the city with the highest population density in Japan.

He can speak African American Vernacular English fluently.

He is of the yellow race and has a deep understanding of Asian culture.

It is said that he possesses the three sacred treasures.

She announced that she is pregnant.

He needed a fathom's depth to ask that question.

The ship has sunk.

He is interested in the study of constructed languages.