Original sentence: "Keyhole-shaped tombs in Korean Peninsula".Even the tumuli from Baekje and Silla are rudimentary in design to the Yamato style key hole kofun, the example of which are found throughout western Japan  , as well as in southern Korea beginning in the 21st century </ref>Yoshii, Hideo.Retrieved 2009-05-30<ref>
Edited sentence: "Keyhole-shaped tombs in Korean Peninsula" (PDF).Even the tumuli from Baekje and Silla are rudimentary in design to the Yamato style key hole kofun, the example of which are found throughout western Japan  , as well as in southern Korea beginning in the 21st century</ref>Yoshii, Hideo.King Asin of Baekje sent his son Jeonji in 397 and King Silseong of Silla sent his son Misaheun in 402.Retrieved 2009-05-30..<ref>