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:
| From | Goal | Round 1 | Round 2 | Round 3 | Round 4 | Round 5 | Round 6+ |
| --- | --- | --- | --- | --- | --- | --- | --- |
| 1977.0 | 200 | Single | Single | Double | Double | Double | Double |
| 1977.0 | 300 | Single | Single | Single | Double | Triple | Triple |
| 1984.0 | 400 | Single | Single | Single | Single | Double | Triple |
| 1988.0 | 300 | Single | Single | Single | Double | Triple | Triple |
| 1988.0 | 300 | Single | Single | Double | Triple | Triple | Triple |
| 1990.0 | 300 | Single | Single | Single | Double | Triple | Triple |
| 1992.0 | 300 | Single | Double | Triple | Triple | Triple | Triple |
| 1999.0 | — | Single | Single | Single | Triple 1 | Sudden Death 2 | Sudden Death 2 |
| 2003.0 | 300 | Single | Single | Double | Triple | Sudden Death | Sudden Death |
| 2009.0 | 300 | Single | Double | Triple | Sudden Death | Sudden Death | Sudden Death |
| 2010.0 | 300 | Single | Single | Double | Triple | Sudden Death | Sudden Death |
Question:
What is Round 2 when Round 4 is Double and Round 3 is Single?
Answer:
Single, Single, Single