Phonology is a branch of linguistics that studies the system of sounds and their functions.

Acrylamide is a type of chemical, especially used in the manufacture of plastics.

Carlos is my best friend.

The history of the Comintern is very interesting.

String theory is a branch of physics that is a theory for understanding the basic structure of the universe.

He wrote a new paper on string theory.

My new four-wheeled vehicle is very fast.

He is suspected of using a tampered ROM in pachinko.

That joke is hilarious, isn't it?

Maple was reading a book in the library.