光太郎

光太郎

"光太郎" (Koutarou) is a Japanese male given name, typically meaning "radiant big son" or "shining eldest son," depending on the kanji interpretation.

In this sentence, '光太郎' is used as a proper noun, specifically as a male given name.

光太郎は公園でランニングをしている。

Koutarou is running in the park.

Here, '光太郎' denotes the subject of the action, indicating who read the book.

光太郎の読んだ本はとても面白かった。

The book Koutarou read was very interesting.

In this instance, '光太郎' functions as the possessor, showing ownership of the room.

光太郎の部屋はいつもとてもきれいで、彼の性格が反映されている。

Koutarou's room is always very clean, reflecting his personality.