My room is on the second floor.

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

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 personal thought is that everyone should be treated equally.

When I first met her, I introduced myself saying, 'I am Japanese.'

We prioritize customer satisfaction above all else.