He was handed over to the international tribunal as a war criminal.

This staircase is very beautiful.

My apartment is a five-story building.

I needed to calculate the factorial of 5 for a math problem.

What floor is the library on?

My room is upstairs.

My room is on the second floor.

He is good at playing the chromatic scale on the piano.

The National Research and Development Agency plays a crucial role in advancing science and technology.

My great-grandfather was a great man.