Where is the cathode of this battery?

He played a beautiful serenade for me.

During the polar night period, it's a very strange experience that the sun doesn't rise.

The Far East is a geographical term referring to a part of Asia.

He kicked a ball in the park.

My father works at a local broadcasting station.

The shape of a hyperbola is very unique and has interesting mathematical properties.

He is good at playing nocturnes.

He is good at playing Beethoven's variations.

He is dreaming of a trip to the North Pole.