Number theory is a branch of mathematics that primarily studies the properties of integers.

He's just wasting time and accomplishing nothing.

She got a new wolf cut hairstyle.

He experienced the harsh reality of the underbelly of society.

The new car is painted jet black, with a beautiful lustrous shine.

Pragmatics is a part of linguistics that considers not only the meaning of sentences but also their usage situations.

This picture is drawn using gold leaf.

When a leap second is added, the world's clock shifts by one second.

The author's photo is featured on the back cover of this book.

This is my first fortune cookie.