Power often changes people.

We went sightseeing in Kyoto.

Information retrieval technology is essential for finding necessary information from a large amount of data.

It is important for us to economize in order not to waste money.

My brother is a graduate student at the University of Tokyo.

His new movie is a true masterpiece.

He is majoring in architecture.

This building has existed for centuries.

He is a world-renowned researcher.

He is studying architecture.