I am a member of the Third International.

The Third International was a historically important organization.

The First International was an international organization of workers.

The Neogene period is a part of the geological era, which lasted from about 23 million years ago to about 2.6 million years ago.

The Paleogene period was a very important time in the history of the Earth.

The Quaternary is the most recent era in Earth's history.

His first adjective is 'beautiful'.

In our company, we always adhere to the principle of safety first.

This contract prohibits interference by a third party.

My younger sister is in her second year of senior high school, and she is busy studying every day.