利(と)根(ね)川(がわ) • (Tonegawa) a surname...
found used in combinations as a kind of euphemism, such as referring to the 利根川 (Tone-gawa, “Tone River”) as 坂東太郎 (Bandō Tarō, literally “Tarō of the Bandō...
利根川樋門 (Tonegawa Himon)....