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:
| Rank | Athlete | Country | Time | Notes |
| --- | --- | --- | --- | --- |
| 1.0 | Ekaterina Karsten | Belarus | 7:25.74 | SA/B |
| 2.0 | Frida Svensson | Sweden | 7:29.29 | SA/B |
| 3.0 | Emma Twigg | New Zealand | 7:34.24 | SA/B |
| 4.0 | Rika Geyser | South Africa | 7:44.14 | SC/D |
| 5.0 | Gabriela Best | Argentina | 7:46.45 | SC/D |
| 6.0 | Lee Ka Man | Hong Kong | 8:04.68 | SC/D |
Question:
What country is the athlete ekaterina karsten from with a rank less than 4?
Answer:
Belarus