. . "Hŭng-guk"@en . "宋 興國" . . "Hŭng-guk Song"@en . . "송흥국" . . "Heung Kook Song" . "송흥국" . "宋興國" . "宋興國" . "Heung Kook" . "송흥국" . "宋興國" . "Song"@en .