Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Heat | Lane | Name | Nationality | Time |
| --- | --- | --- | --- | --- |
| 5.0 | 4.0 | Megan Quann | United States | 1:07.48 |
| 6.0 | 4.0 | Penny Heyns | South Africa | 1:07.85 |
| 6.0 | 3.0 | Leisel Jones | Australia | 1:07.92 |
| 4.0 | 5.0 | Sarah Poewe | South Africa | 1:08.06 |
| 4.0 | 3.0 | Tarnee White | Australia | 1:08.35 |
| 5.0 | 5.0 | Ágnes Kovács | Hungary | 1:08.50 |
| 4.0 | 4.0 | Masami Tanaka | Japan | 1:09.12 |
| 6.0 | 6.0 | Sylvia Gerasch | Germany | 1:09.31 |
| 4.0 | 2.0 | Brigitte Becue | Belgium | 1:09.38 |
| 4.0 | 7.0 | Christin Petelski | Canada | 1:09.57 |
| 5.0 | 3.0 | Svitlana Bondarenko | Ukraine | 1:09.60 |
| 6.0 | 2.0 | Rhiannon Leier | Canada | 1:09.68 |
| 5.0 | 6.0 | Qi Hui | China | 1:09.88 |
| 6.0 | 7.0 | Simone Karn | Germany | 1:09.94 |
| 5.0 | 8.0 | Nataša Kejžar | Slovenia | 1:10.44 |
| 6.0 | 8.0 | Madelon Baans | Netherlands | 1:10.47 |
| 5.0 | 1.0 | Olga Bakaldina | Russia | 1:10.53 |
| 6.0 | 5.0 | Staciana Stitts | United States | 1:10.54 |
| 4.0 | 6.0 | Li Wei | China | 1:10.55 |
| 5.0 | 7.0 | Heidi Earp | Great Britain | 1:10.56 |
| 5.0 | 2.0 | Alicja Pęczak | Poland | 1:10.57 |
| 6.0 | 1.0 | Emma Igelström | Sweden | 1:11.09 |
| 2.0 | 6.0 | İlkay Dikmen | Turkey | 1:11.51 |
| 3.0 | 4.0 | Elvira Fischer | Austria | 1:11.58 |
| 4.0 | 8.0 | Byun Hye-Young | South Korea | 1:11.64 |
| 3.0 | 1.0 | Isabel Ceballos | Colombia | 1:11.90 |
| 3.0 | 7.0 | Agata Czaplicki | Switzerland | 1:13.19 |
| 3.0 | 5.0 | Joscelin Yeo | Singapore | 1:13.25 |
| 3.0 | 3.0 | Emma Robinson | Ireland | 1:13.41 |
| 3.0 | 2.0 | Smiljana Marinović | Croatia | 1:13.49 |
| 3.0 | 6.0 | Imaday Nuñez Gonzalez | Cuba | 1:13.91 |
| 2.0 | 4.0 | Siow Yi Ting | Malaysia | 1:13.92 |
| 2.0 | 3.0 | Íris Edda Heimisdóttir | Iceland | 1:14.07 |
| 2.0 | 5.0 | Olga Moltchanova | Kyrgyzstan | 1:14.41 |
| 3.0 | 8.0 | Jenny Rose Guerrero | Philippines | 1:15.14 |
| 2.0 | 2.0 | Caroline Chiu Sin Wing | Hong Kong | 1:15.87 |
| 2.0 | 1.0 | Katerine Moreno | Bolivia | 1:16.15 |
| 2.0 | 7.0 | Nádia Cruz | Angola | 1:19.57 |
| 2.0 | 8.0 | Xenia Peni | Papua New Guinea | 1:19.62 |
| 1.0 | 3.0 | Mariam Pauline Keita | Mali | 1:37.80 |
| 1.0 | 5.0 | Balkissa Ouhoumoudou | Niger | 1:42.39 |
| 1.0 | 4.0 | Doli Akhter | Bangladesh | DSQ |
| 1.0 | 6.0 | Pamela Girimbabazi | Rwanda | DSQ |
| 4.0 | 1.0 | Junko Isoda | Japan | DNS |
Question:
In heat 4, what is Byun Hye-young's Nationality?
Answer:
South Korea