He is deeply involved in politics.

The creatures of the ancient times were significantly different from the creatures of today.

The imperial government was the center of ancient Japanese politics.

He is the center of the team.

This ancient artifact is very valuable.

It is very interesting to learn about ancient history.

Seiji is my best friend, he is always a fair and just person.

Masashi is my best friend.

Mr. Masa is my best friend.

The government announced a new policy.